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HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS TUTORIAL
CSS is the language we use to style an HTML document. CSS describes how HTML elements should be displayed. This tutorial will teach you CSS from basic to advanced.MYSQL TUTORIAL
MySQL. Tutorial. MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and large applications.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications. C# TUTORIAL (C SHARP) C#. Tutorial. C# (C-Sharp) is a programming language developed by Microsoft that runs on the .NET Framework. C# is used to develop web apps, desktop apps, mobile apps, games and much more.CSS GRID LAYOUT
Property Description; column-gap: Specifies the gap between the columns: gap: A shorthand property for the row-gap and the column-gap properties: grid: A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties: grid-area: Either specifies a name for the grid item, or this property is a SQL UPDATE STATEMENT UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, WHERE condition; Note: Be careful when updating records in a table! Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated. If you omit the WHERE clause, all records in the table will be updated! W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS TUTORIAL
CSS is the language we use to style an HTML document. CSS describes how HTML elements should be displayed. This tutorial will teach you CSS from basic to advanced.MYSQL TUTORIAL
MySQL. Tutorial. MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and large applications.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.JAVA TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed. SQL UPDATE STATEMENT UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, WHERE condition; Note: Be careful when updating records in a table! Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated. If you omit the WHERE clause, all records in the table will be updated! SQL GROUP BY STATEMENT The SQL GROUP BY Statement. The GROUP BY statement groups rows that have the same values into summary rows, like "find the number of customers in each country". The GROUP BY statement is often used with aggregate functions ( COUNT (), MAX (), MIN (), SUM (), AVG ()) to group the result-set by one or more columns.JAVASCRIPT TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.PHP TUTORIAL
PHP Tutorial. PHP. Tutorial. PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. PHP 7 is the latest stable release.REACT TUTORIAL
Create React App. In order to learn and test React, you should set up a React Environment on your computer. This tutorial uses the create-react-app.. The create-react-app is an officially supported way to create React applications.. If you have NPM and Node.js installed, you can create a React application by first installing thecreate-react-app.
HTML COLOR PICKER
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TABLES
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.JAVA TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.GIT TUTORIAL
git --version git version 2.30.2.windows.1. For new users, using the terminal view can seem a bit complicated. Don't worry! We will keep it really simple, and learning this way gives you a good grasp of how Git works. In the code above, you can see commands (input) and output. Lines like this are commands we input: CSS COLORS - W3SCHOOLS Color Names Supported by All Browsers. All modern browsers support the following 140 color names (click on a color name, or a hex value, to view the color as the background-color along with different text colors): For a full overview of CSS colors, visit our colors tutorial.AliceBlue. #F0F8FF.
HTML SELECT TAG
Definition and Usage. The element is used to create a drop-down list.. The element is most often used in a form, to collect user input.. The name attribute is needed to reference the form data after the form is submitted (if you omit the name attribute, no data from the drop-down list will be submitted).. The id attribute is needed to associate the drop-down list with a label.CSS STYLING TABLES
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more. W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS TUTORIAL
CSS is the language we use to style an HTML document. CSS describes how HTML elements should be displayed. This tutorial will teach you CSS from basic to advanced.MYSQL TUTORIAL
MySQL. Tutorial. MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and large applications.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.JAVA TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed. SQL UPDATE STATEMENT UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, WHERE condition; Note: Be careful when updating records in a table! Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated. If you omit the WHERE clause, all records in the table will be updated! SQL GROUP BY STATEMENT The SQL GROUP BY Statement. The GROUP BY statement groups rows that have the same values into summary rows, like "find the number of customers in each country". The GROUP BY statement is often used with aggregate functions ( COUNT (), MAX (), MIN (), SUM (), AVG ()) to group the result-set by one or more columns. W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS TUTORIAL
CSS is the language we use to style an HTML document. CSS describes how HTML elements should be displayed. This tutorial will teach you CSS from basic to advanced.MYSQL TUTORIAL
MySQL. Tutorial. MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and large applications.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.JAVA TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed. SQL UPDATE STATEMENT UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, WHERE condition; Note: Be careful when updating records in a table! Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated. If you omit the WHERE clause, all records in the table will be updated! SQL GROUP BY STATEMENT The SQL GROUP BY Statement. The GROUP BY statement groups rows that have the same values into summary rows, like "find the number of customers in each country". The GROUP BY statement is often used with aggregate functions ( COUNT (), MAX (), MIN (), SUM (), AVG ()) to group the result-set by one or more columns.JAVASCRIPT TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.PHP TUTORIAL
PHP Tutorial. PHP. Tutorial. PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. PHP 7 is the latest stable release.REACT TUTORIAL
Create React App. In order to learn and test React, you should set up a React Environment on your computer. This tutorial uses the create-react-app.. The create-react-app is an officially supported way to create React applications.. If you have NPM and Node.js installed, you can create a React application by first installing thecreate-react-app.
HTML TABLES
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.JAVA TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.HTML COLOR PICKER
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS GRID LAYOUT
Property Description; column-gap: Specifies the gap between the columns: gap: A shorthand property for the row-gap and the column-gap properties: grid: A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties: grid-area: Either specifies a name for the grid item, or this property is a CSS COLORS - W3SCHOOLS Color Names Supported by All Browsers. All modern browsers support the following 140 color names (click on a color name, or a hex value, to view the color as the background-color along with different text colors): For a full overview of CSS colors, visit our colors tutorial.AliceBlue. #F0F8FF.
HTML SELECT TAG
Definition and Usage. The element is used to create a drop-down list.. The element is most often used in a form, to collect user input.. The name attribute is needed to reference the form data after the form is submitted (if you omit the name attribute, no data from the drop-down list will be submitted).. The id attribute is needed to associate the drop-down list with a label.CSS STYLING TABLES
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more. W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.JAVASCRIPT TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.CSS BUTTONS
Disabled Buttons Normal Button Disabled Button. Use the opacity property to add transparency to a button (creates a "disabled" look).. Tip: You can also add the cursor property with a value of "not-allowed", which will display a "no parking sign" when you mouseover the button:
HTML SELECT TAG
Definition and Usage. The element is used to create a drop-down list.. The element is most often used in a form, to collect user input.. The name attribute is needed to reference the form data after the form is submitted (if you omit the name attribute, no data from the drop-down list will be submitted).. The id attribute is needed to associate the drop-down list with a label.CSS GRID LAYOUT
Property Description; column-gap: Specifies the gap between the columns: gap: A shorthand property for the row-gap and the column-gap properties: grid: A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties: grid-area: Either specifies a name for the grid item, or this property is aHTML BUTTON TAG
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS PADDING
CSS Padding. The CSS padding properties are used to generate space around an element's content, inside of any defined borders.. With CSS, you have full control over the padding. There are properties for setting the padding for each side of an element (top, right, bottom,and left).
W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.JAVASCRIPT TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.CSS BUTTONS
Disabled Buttons Normal Button Disabled Button. Use the opacity property to add transparency to a button (creates a "disabled" look).. Tip: You can also add the cursor property with a value of "not-allowed", which will display a "no parking sign" when you mouseover the button:
HTML SELECT TAG
Definition and Usage. The element is used to create a drop-down list.. The element is most often used in a form, to collect user input.. The name attribute is needed to reference the form data after the form is submitted (if you omit the name attribute, no data from the drop-down list will be submitted).. The id attribute is needed to associate the drop-down list with a label.CSS GRID LAYOUT
Property Description; column-gap: Specifies the gap between the columns: gap: A shorthand property for the row-gap and the column-gap properties: grid: A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties: grid-area: Either specifies a name for the grid item, or this property is aHTML BUTTON TAG
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS PADDING
CSS Padding. The CSS padding properties are used to generate space around an element's content, inside of any defined borders.. With CSS, you have full control over the padding. There are properties for setting the padding for each side of an element (top, right, bottom,and left).
JAVASCRIPT TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.C# EXAMPLES
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML.HTML TABLES
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more. C# SYNTAX - W3SCHOOLS Example explained. Line 1: using System means that we can use classes from the System namespace. Line 2: A blank line. C# ignores white space. However, multiple lines makes the code more readable. Line 3: namespace is a used to organize your code, and it is a container for classes and other namespaces. Line 4: The curly braces {} marks the beginning and the end of a block of code. C# METHODS - W3SCHOOLS Create a Method. A method is defined with the name of the method, followed by parentheses ().C# provides some pre-defined methods, which you already are familiar with, such as Main(), but you can also create your own methods to perform certain actions:HTML SELECT TAG
Definition and Usage. The element is used to create a drop-down list.. The element is most often used in a form, to collect user input.. The name attribute is needed to reference the form data after the form is submitted (if you omit the name attribute, no data from the drop-down list will be submitted).. The id attribute is needed to associate the drop-down list with a label.C# OPERATORS
C# Operators. Operators are used to perform operations on variables and values. In the example below, we use the + operator to add together two values:HTML BUTTON TAG
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.JAVA TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.CSS BORDERS
CSS Border Style. The border-style property specifies what kind of border to display.. The following values are allowed: dotted - Defines a dotted border; dashed - Defines a dashed border; solid - Defines a solid border; double - Defines a double border; groove - Defines a 3D grooved border. The effect depends on the border-color value; ridge - Defines a 3D ridged border. W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.CSS BUTTONS
Disabled Buttons Normal Button Disabled Button. Use the opacity property to add transparency to a button (creates a "disabled" look).. Tip: You can also add the cursor property with a value of "not-allowed", which will display a "no parking sign" when you mouseover the button:
HTML SELECT TAG
Definition and Usage. The element is used to create a drop-down list.. The element is most often used in a form, to collect user input.. The name attribute is needed to reference the form data after the form is submitted (if you omit the name attribute, no data from the drop-down list will be submitted).. The id attribute is needed to associate the drop-down list with a label.HTML BUTTON TAG
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS GRID LAYOUT
Property Description; column-gap: Specifies the gap between the columns: gap: A shorthand property for the row-gap and the column-gap properties: grid: A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties: grid-area: Either specifies a name for the grid item, or this property is aCSS PADDING
CSS Padding. The CSS padding properties are used to generate space around an element's content, inside of any defined borders.. With CSS, you have full control over the padding. There are properties for setting the padding for each side of an element (top, right, bottom,and left).
CSS :HOVER SELECTOR
Definition and Usage. The :hover selector is used to select elements when you mouse over them.. Tip: The :hover selector can be used on all elements, not only on links. Tip: Use the :link selector to style links to unvisited pages, the :visited selector to style links to visited pages, and the :active selector to style the active link. Note::hover MUST come after :link and :visited (if they W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.CSS BUTTONS
Disabled Buttons Normal Button Disabled Button. Use the opacity property to add transparency to a button (creates a "disabled" look).. Tip: You can also add the cursor property with a value of "not-allowed", which will display a "no parking sign" when you mouseover the button:
HTML SELECT TAG
Definition and Usage. The element is used to create a drop-down list.. The element is most often used in a form, to collect user input.. The name attribute is needed to reference the form data after the form is submitted (if you omit the name attribute, no data from the drop-down list will be submitted).. The id attribute is needed to associate the drop-down list with a label.HTML BUTTON TAG
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS GRID LAYOUT
Property Description; column-gap: Specifies the gap between the columns: gap: A shorthand property for the row-gap and the column-gap properties: grid: A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties: grid-area: Either specifies a name for the grid item, or this property is aCSS PADDING
CSS Padding. The CSS padding properties are used to generate space around an element's content, inside of any defined borders.. With CSS, you have full control over the padding. There are properties for setting the padding for each side of an element (top, right, bottom,and left).
CSS :HOVER SELECTOR
Definition and Usage. The :hover selector is used to select elements when you mouse over them.. Tip: The :hover selector can be used on all elements, not only on links. Tip: Use the :link selector to style links to unvisited pages, the :visited selector to style links to visited pages, and the :active selector to style the active link. Note::hover MUST come after :link and :visited (if theyJAVASCRIPT TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TABLES
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.C# EXAMPLES
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML.HTML SELECT TAG
Definition and Usage. The element is used to create a drop-down list.. The element is most often used in a form, to collect user input.. The name attribute is needed to reference the form data after the form is submitted (if you omit the name attribute, no data from the drop-down list will be submitted).. The id attribute is needed to associate the drop-down list with a label. C# SYNTAX - W3SCHOOLS Example explained. Line 1: using System means that we can use classes from the System namespace. Line 2: A blank line. C# ignores white space. However, multiple lines makes the code more readable. Line 3: namespace is a used to organize your code, and it is a container for classes and other namespaces. Line 4: The curly braces {} marks the beginning and the end of a block of code.JAVA TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed. CSS COLORS - W3SCHOOLS Color Names Supported by All Browsers. All modern browsers support the following 140 color names (click on a color name, or a hex value, to view the color as the background-color along with different text colors): For a full overview of CSS colors, visit our colors tutorial.AliceBlue. #F0F8FF.
C# METHODS
Create a Method. A method is defined with the name of the method, followed by parentheses ().C# provides some pre-defined methods, which you already are familiar with, such as Main(), but you can also create your own methods to perform certain actions: CSS FLEXBOX (FLEXIBLE BOX) Before the Flexbox Layout module, there were four layout modes: Block, for sections in a webpage. Inline, for text. Table, for two-dimensional table data. Positioned, for explicit position of an element. The Flexible Box Layout Module, makes it easier to design flexible responsive layout structure without using float W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS TUTORIAL
CSS is the language we use to style an HTML document. CSS describes how HTML elements should be displayed. This tutorial will teach you CSS from basic to advanced.MYSQL TUTORIAL
MySQL. Tutorial. MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and large applications.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed. C# TUTORIAL (C SHARP) C#. Tutorial. C# (C-Sharp) is a programming language developed by Microsoft that runs on the .NET Framework. C# is used to develop web apps, desktop apps, mobile apps, games and much more.CSS GRID LAYOUT
Property Description; column-gap: Specifies the gap between the columns: gap: A shorthand property for the row-gap and the column-gap properties: grid: A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties: grid-area: Either specifies a name for the grid item, or this property is a SQL UPDATE STATEMENT UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, WHERE condition; Note: Be careful when updating records in a table! Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated. If you omit the WHERE clause, all records in the table will be updated! W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS TUTORIAL
CSS is the language we use to style an HTML document. CSS describes how HTML elements should be displayed. This tutorial will teach you CSS from basic to advanced.MYSQL TUTORIAL
MySQL. Tutorial. MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and large applications.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed. C# TUTORIAL (C SHARP) C#. Tutorial. C# (C-Sharp) is a programming language developed by Microsoft that runs on the .NET Framework. C# is used to develop web apps, desktop apps, mobile apps, games and much more.CSS GRID LAYOUT
Property Description; column-gap: Specifies the gap between the columns: gap: A shorthand property for the row-gap and the column-gap properties: grid: A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties: grid-area: Either specifies a name for the grid item, or this property is a SQL UPDATE STATEMENT UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, WHERE condition; Note: Be careful when updating records in a table! Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated. If you omit the WHERE clause, all records in the table will be updated!JAVASCRIPT TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML COLOR PICKER
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.PHP TUTORIAL
PHP Tutorial. PHP. Tutorial. PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. PHP 7 is the latest stable release.HTML TABLES
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.JAVA TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.HTML SELECT TAG
Definition and Usage. The element is used to create a drop-down list.. The element is most often used in a form, to collect user input.. The name attribute is needed to reference the form data after the form is submitted (if you omit the name attribute, no data from the drop-down list will be submitted).. The id attribute is needed to associate the drop-down list with a label. CSS COLORS - W3SCHOOLS Color Names Supported by All Browsers. All modern browsers support the following 140 color names (click on a color name, or a hex value, to view the color as the background-color along with different text colors): For a full overview of CSS colors, visit our colors tutorial.AliceBlue. #F0F8FF.
BOOTSTRAP 4 TUTORIAL Bootstrap 3 vs. Bootstrap 4. Bootstrap 4 is the newest version of Bootstrap; with new components, faster stylesheet and more responsiveness. Bootstrap 4 supports the latest, stable releases of all major browsers and platforms. However, Internet Explorer 9 and down is not supported. If you require IE8-9 support, use Bootstrap 3.HTML BUTTON TAG
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more. W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS TUTORIAL
CSS is the language we use to style an HTML document. CSS describes how HTML elements should be displayed. This tutorial will teach you CSS from basic to advanced.MYSQL TUTORIAL
MySQL. Tutorial. MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and large applications.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed. C# TUTORIAL (C SHARP) C#. Tutorial. C# (C-Sharp) is a programming language developed by Microsoft that runs on the .NET Framework. C# is used to develop web apps, desktop apps, mobile apps, games and much more.CSS GRID LAYOUT
Property Description; column-gap: Specifies the gap between the columns: gap: A shorthand property for the row-gap and the column-gap properties: grid: A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties: grid-area: Either specifies a name for the grid item, or this property is a SQL UPDATE STATEMENT UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, WHERE condition; Note: Be careful when updating records in a table! Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated. If you omit the WHERE clause, all records in the table will be updated! W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS TUTORIAL
CSS is the language we use to style an HTML document. CSS describes how HTML elements should be displayed. This tutorial will teach you CSS from basic to advanced.MYSQL TUTORIAL
MySQL. Tutorial. MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and large applications.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed. C# TUTORIAL (C SHARP) C#. Tutorial. C# (C-Sharp) is a programming language developed by Microsoft that runs on the .NET Framework. C# is used to develop web apps, desktop apps, mobile apps, games and much more.CSS GRID LAYOUT
Property Description; column-gap: Specifies the gap between the columns: gap: A shorthand property for the row-gap and the column-gap properties: grid: A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties: grid-area: Either specifies a name for the grid item, or this property is a SQL UPDATE STATEMENT UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, WHERE condition; Note: Be careful when updating records in a table! Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated. If you omit the WHERE clause, all records in the table will be updated!JAVASCRIPT TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML COLOR PICKER
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.PHP TUTORIAL
PHP Tutorial. PHP. Tutorial. PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. PHP 7 is the latest stable release.HTML TABLES
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.JAVA TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.HTML SELECT TAG
Definition and Usage. The element is used to create a drop-down list.. The element is most often used in a form, to collect user input.. The name attribute is needed to reference the form data after the form is submitted (if you omit the name attribute, no data from the drop-down list will be submitted).. The id attribute is needed to associate the drop-down list with a label. CSS COLORS - W3SCHOOLS Color Names Supported by All Browsers. All modern browsers support the following 140 color names (click on a color name, or a hex value, to view the color as the background-color along with different text colors): For a full overview of CSS colors, visit our colors tutorial.AliceBlue. #F0F8FF.
BOOTSTRAP 4 TUTORIAL Bootstrap 3 vs. Bootstrap 4. Bootstrap 4 is the newest version of Bootstrap; with new components, faster stylesheet and more responsiveness. Bootstrap 4 supports the latest, stable releases of all major browsers and platforms. However, Internet Explorer 9 and down is not supported. If you require IE8-9 support, use Bootstrap 3.HTML BUTTON TAG
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more. W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS TUTORIAL
CSS is the language we use to style an HTML document. CSS describes how HTML elements should be displayed. This tutorial will teach you CSS from basic to advanced.MYSQL TUTORIAL
MySQL. Tutorial. MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and large applications.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed. C# TUTORIAL (C SHARP) C#. Tutorial. C# (C-Sharp) is a programming language developed by Microsoft that runs on the .NET Framework. C# is used to develop web apps, desktop apps, mobile apps, games and much more.CSS GRID LAYOUT
Property Description; column-gap: Specifies the gap between the columns: gap: A shorthand property for the row-gap and the column-gap properties: grid: A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties: grid-area: Either specifies a name for the grid item, or this property is a SQL UPDATE STATEMENT UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, WHERE condition; Note: Be careful when updating records in a table! Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated. If you omit the WHERE clause, all records in the table will be updated! W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.CSS TUTORIAL
CSS is the language we use to style an HTML document. CSS describes how HTML elements should be displayed. This tutorial will teach you CSS from basic to advanced.MYSQL TUTORIAL
MySQL. Tutorial. MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and large applications.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.PYTHON TUTORIAL
Python. Tutorial. Python is a programming language. Python can be used on a server to create web applications.C++ TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed. C# TUTORIAL (C SHARP) C#. Tutorial. C# (C-Sharp) is a programming language developed by Microsoft that runs on the .NET Framework. C# is used to develop web apps, desktop apps, mobile apps, games and much more.CSS GRID LAYOUT
Property Description; column-gap: Specifies the gap between the columns: gap: A shorthand property for the row-gap and the column-gap properties: grid: A shorthand property for the grid-template-rows, grid-template-columns, grid-template-areas, grid-auto-rows, grid-auto-columns, and the grid-auto-flow properties: grid-area: Either specifies a name for the grid item, or this property is a SQL UPDATE STATEMENT UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, WHERE condition; Note: Be careful when updating records in a table! Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record (s) that should be updated. If you omit the WHERE clause, all records in the table will be updated!JAVASCRIPT TUTORIAL
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.PHP TUTORIAL
PHP Tutorial. PHP. Tutorial. PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. PHP 7 is the latest stable release.JAVA TUTORIAL
Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when needed, and go over the examples as many times as needed.HTML COLOR PICKER
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more. STATISTICS - STUDY TYPES Main Types of Statistical Studies. The main types of statistical studies are observational and experimental studies.. We are often interested in knowing if something is the cause of another thing.. Experimental studies are generally better than observational studies for investigating this, but usually require more effort.CSS STYLING TABLES
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.COLORS CMYK
CMYK Colors. CMYK colors is a combination of CYAN, MAGENTA, YELLOW , and BLACK. Computer screens display colors using RGB color values. Printers often presents colors using CMYK color values. COLORS HEX - W3SCHOOLS.COM Hexadecimal Colors. Hexadecimal color values are also supported in all browsers. A hexadecimal color is specified with: #RRGGBB. RR (red), GG (green) and BB (blue) are hexadecimal integers between 00 and FF specifying the intensity of the color. COLORS RGB - W3SCHOOLS.COM RGB Colors. RGB color values are supported in all browsers. An RGB color value is specified with: rgb(red, green, blue). Each parameter (red, green, and blue) defines the intensity of the color as an integer between 0 and 255. W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
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PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP.MYSQL TUTORIAL
MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and largeapplications.
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We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new.Take breaks when
C# TUTORIAL (C SHARP) C# (C-Sharp) is a programming language developed by Microsoft that runs on the .NET Framework. C# is used to develop web apps, desktop apps, mobile apps, games and much more.SQL CASE STATEMENT
The SQL CASE Statement. The CASE statement goes through conditions and returns a value when the first condition is met (like an if-then-else statement). So, once a condition is true, it will stop reading and return the result. If no conditions are true, it returns the value in the ELSE clause.. If there is no ELSE part and no conditions are true,it returns NULL.
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Python For Loops. A for loop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string).. This is less like the for keyword in other programming languages, and works more like an iterator method as found in other object-orientated programming languages.. With the for loop we can execute a set of statements, once for each item in a list, tuple, set etc. W3SCHOOLS ONLINE WEB TUTORIALSLEARN HTMLLEARN SQLLEARN PYTHONLEARN CSSLEARN PHPLEARN JAVA Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.HTML TUTORIAL
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PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP.MYSQL TUTORIAL
MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and largeapplications.
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Python is a programming language. Python can be used on a server to create web applications. Start learning Python now »C++ TUTORIAL
We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new.Take breaks when
C# TUTORIAL (C SHARP) C# (C-Sharp) is a programming language developed by Microsoft that runs on the .NET Framework. C# is used to develop web apps, desktop apps, mobile apps, games and much more.SQL CASE STATEMENT
The SQL CASE Statement. The CASE statement goes through conditions and returns a value when the first condition is met (like an if-then-else statement). So, once a condition is true, it will stop reading and return the result. If no conditions are true, it returns the value in the ELSE clause.. If there is no ELSE part and no conditions are true,it returns NULL.
PYTHON FOR LOOPS
Python For Loops. A for loop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string).. This is less like the for keyword in other programming languages, and works more like an iterator method as found in other object-orientated programming languages.. With the for loop we can execute a set of statements, once for each item in a list, tuple, set etc.W3.CSS HOME
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.SQL TUTORIAL
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems.W3SCHOOLS CODE GAME
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We recommend reading this tutorial, in the sequence listed in the left menu. Java is an object oriented language and some concepts may be new. Take breaks when BOOTSTRAP 4 TUTORIAL Bootstrap 3 vs. Bootstrap 4. Bootstrap 4 is the newest version of Bootstrap; with new components, faster stylesheet and more responsiveness. Bootstrap 4 supports the latest, stable releases of all major browsers and platforms. STATISTICS - STUDY TYPES Main Types of Statistical Studies. The main types of statistical studies are observational and experimental studies.. We are often interested in knowing if something is the cause of another thing.. Experimental studies are generally better than observational studies for investigating this, but usually require more effort.COLORS CMYK
CMYK Colors. CMYK colors is a combination of CYAN, MAGENTA, YELLOW , and BLACK. Computer screens display colors using RGB color values. Printers often presents colors using CMYK color values. COLORS RGB - W3SCHOOLS.COM RGB Colors. RGB color values are supported in all browsers. An RGB color value is specified with: rgb(red, green, blue). Each parameter (red, green, and blue) defines the intensity of the color as an integer between 0 and 255. COLORS HEX - W3SCHOOLS.COM Hexadecimal Colors. Hexadecimal color values are also supported in all browsers. A hexadecimal color is specified with: #RRGGBB. RR (red), GG (green) and BB (blue) are hexadecimal integers between 00 and FF specifying the intensity of the color.COLORS NCOL
Natural Colors (NCol) Natural colors (NCol) is an initiative from W3Schools. The system is designed to make it easier to select HTML colors. NCol specifies colors using a color letter with a number to specify the distance (in percent) from the color. __ Tutorials ____ References ____ Exercises ____ Menu ____Log in
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Foreach Loop Break/Continue PHP Functions PHP Arrays Arrays Indexed Arrays Associative Arrays Multidimensional Arrays Sorting ArraysPHP Superglobals
Superglobals $GLOBALS$_SERVER
$_REQUEST
$_POST
$_GET PHP RegEx
PHP FORMS
PHP Form Handling PHP Form ValidationPHP Form Required
PHP Form URL/E-mail PHP Form CompletePHP ADVANCED
PHP Date and Time PHP Include PHP File Handling PHP File Open/Read PHP File Create/Write PHP File Upload PHP Cookies PHP Sessions PHP Filters PHP Filters Advanced PHP Callback Functions PHP JSON PHP ExceptionsPHP OOP
PHP What is OOP PHP Classes/ObjectsPHP Constructor
PHP Destructor
PHP Access Modifiers PHP InheritancePHP Constants PHP
Abstract Classes PHP Interfaces PHP Traits PHP Static Methods PHP Static PropertiesPHP Namespaces
PHP Iterables
MYSQL DATABASE
MySQL Database MySQL Connect MySQL Create DB MySQL Create Table MySQL Insert DataMySQL Get Last ID
MySQL Insert MultipleMySQL Prepared
MySQL Select Data
MySQL Where
MySQL Order By MySQL Delete DataMySQL Update Data
MySQL Limit Data
PHP XML
PHP XML Parsers PHP SimpleXML ParserPHP SimpleXML - Get
PHP XML Expat
PHP XML DOM
PHP - AJAX
AJAX Intro AJAX PHP AJAX Database AJAX XML AJAX Live Search AJAX PollPHP EXAMPLES
PHP Examples PHP Compiler PHP Quiz PHP Exercises PHPCertificate
PHP REFERENCE
PHP Overview PHP Array array() array_change_key_case()array_chunk()
array_column()
array_combine() array_count_values()array_diff()
array_diff_assoc() array_diff_key()array_diff_uassoc()
array_diff_ukey()
array_fill()
array_fill_keys() array_filter()array_flip()
array_intersect() array_intersect_assoc() array_intersect_key() array_intersect_uassoc() array_intersect_ukey()array_key_exists()
array_keys()
array_map() array_merge() array_merge_recursive()array_multisort()
array_pad()
array_pop() array_product()array_push()
array_rand() array_reduce()array_replace()
array_replace_recursive() array_reverse() array_search()array_shift()
array_slice() array_splice()array_sum()
array_udiff() array_udiff_assoc() array_udiff_uassoc()array_uintersect()
array_uintersect_assoc() array_uintersect_uassoc()array_unique()
array_unshift()
array_values() array_walk() array_walk_recursive()arsort()
asort() compact()
count() current()
each() end() extract()in_array() key()
krsort() ksort()
list() natcasesort()natsort()
next() pos() prev()range() reset()
rsort() shuffle()
sizeof() sort()
uasort() uksort()
usort() PHP Calendar cal_days_in_month() cal_from_jd()cal_info()
cal_to_jd() easter_date()easter_days()
frenchtojd() gregoriantojd()jddayofweek()
jdmonthname()
jdtofrench() jdtogregorian()jdtojewish()
jdtojulian() jdtounix()jewishtojd()
juliantojd() unixtojd()PHP Date
checkdate() date_add() date_create_from_format()date_create()
date_date_set()
date_default_timezone_get() date_default_timezone_set() date_diff() date_format() date_get_last_errors() date_interval_create_from_date_string() date_interval_format() date_isodate_set() date_modify()date_offset_get()
date_parse_from_format() date_parse() date_sub()date_sun_info()
date_sunrise() date_sunset()date_time_set()
date_timestamp_get() date_timestamp_set() date_timezone_get() date_timezone_set()date() getdate()
gettimeofday()
gmdate() gmmktime() gmstrftime() idate()localtime()
microtime() mktime()strftime()
strptime() strtotime()time()
timezone_abbreviations_list() timezone_identifiers_list() timezone_location_get() timezone_name_from_abbr()timezone_name_get()
timezone_offset_get()timezone_open()
timezone_transitions_get() timezone_version_get() PHPDirectory
chdir() chroot()
closedir()
dir() getcwd()
opendir() readdir()rewinddir()
scandir()
PHP Error
debug_backtrace()
debug_print_backtrace() error_get_last() error_log()error_reporting()
restore_error_handler() restore_exception_handler()set_error_handler()
set_exception_handler()trigger_error()
PHP Exception
Exception() getCode()getFile()
getMessage() getLine()getPrevious()
getTrace()
getTraceAsString()
PHP Filesystem
basename() chgrp()
chmod()
chown() clearstatcache()copy()
delete()
dirname() disk_free_space()disk_total_space()
diskfreespace()
fclose()
feof()
fflush() fgetc()
fgetcsv()
fgets() fgetss()
file()
file_exists() file_get_contents()file_put_contents()
fileatime()
filectime()
filegroup()
fileinode()
filemtime()
fileowner()
fileperms()
filesize()
filetype()
flock()
fnmatch() fopen()
fpassthru()
fputcsv()
fputs()
fread() fscanf()
fseek()
fstat() ftell()
ftruncate()
fwrite()
glob()
is_dir() is_executable()is_file()
is_link()
is_readable()
is_uploaded_file()
is_writable()
is_writeable()
lchgrp()
lchown()
link() linkinfo()
lstat()
mkdir() move_uploaded_file()parse_ini_file()
parse_ini_string()
pathinfo()
pclose()
popen() readfile()
readlink()
realpath()
realpath_cache_get() realpath_cache_size()rename()
rewind()
rmdir() set_file_buffer()stat()
symlink()
tempnam() tmpfile()touch()
umask() unlink()
PHP Filter
filter_has_var() filter_id()filter_input()
filter_input_array() filter_list()filter_var()
filter_var_array() PHP FTP ftp_alloc() ftp_cdup() ftp_chdir() ftp_chmod() ftp_close() ftp_connect() ftp_delete() ftp_exec() ftp_fget() ftp_fput() ftp_get() ftp_get_option()ftp_login()
ftp_mdtm() ftp_mkdir() ftp_mlsd() ftp_nb_continue()ftp_nb_fget()
ftp_nb_fput() ftp_nb_get() ftp_nb_put() ftp_nlist() ftp_pasv() ftp_put() ftp_pwd() ftp_quit() ftp_raw() ftp_rawlist()ftp_rename()
ftp_rmdir() ftp_set_option() ftp_site() ftp_size()ftp_ssl_connect()
ftp_systype() PHP JSON json_decode() json_encode()PHP Keywords
abstract and as
break callable
case catch
class clone
const continue
declare default
do echo
else elseif empty
enddeclare endfor
endforeach endif
endswitch extends
final finally
fn for
foreach function globalif implements
include include_onceinstanceof
insteadof interface isset list namespacenew or
print private protectedpublic require
require_once returnstatic switch
throw trait
try use var
while xor
yield yield from PHPLibxml
libxml_clear_errors() libxml_disable_entity_loader()libxml_get_errors()
libxml_get_last_error() libxml_set_external_entity_loader() libxml_set_streams_context() libxml_use_internal_errors()PHP Mail
ezmlm_hash() mail()PHP Math
abs() acos() acosh()asin() asinh()
atan() atan2()
atanh() base_convert()bindec() ceil()
cos() cosh()
decbin() dechex()
decoct() deg2rad()
exp() expm1()
floor() fmod()
getrandmax()
hexdec() hypot()
intdiv() is_finite()is_infinite()
is_nan() lcg_value()log() log10()
log1p() max()
min() mt_getrandmax()mt_rand()
mt_srand() octdec() pi() pow() rad2deg()rand() round()
sin() sinh()
sqrt() srand()
tan() tanh()
PHP Misc
connection_aborted()connection_status()
connection_timeout() constant()define() defined()
die() eval()
exit() get_browser()__halt_compiler()
highlight_file()
highlight_string()
hrtime()
ignore_user_abort() pack() php_strip_whitespace()show_source()
sleep()
sys_getloadavg() time_nanosleep()time_sleep_until()
uniqid()
unpack() usleep() PHPMySQLi
affected_rows autocommitchange_user
character_set_name
close
commit connect
connect_errno connect_errordata_seek
debug
dump_debug_info errnoerror error_list
fetch_all
fetch_array fetch_assocfetch_field
fetch_field_direct
fetch_fields
fetch_lengths
fetch_object
fetch_row
field_count field_seekget_charset
get_client_info
get_client_stats
get_client_version
get_connection_statsget_host_info
get_proto_info
get_server_info
get_server_version
info
init insert_id
kill more_results
multi_query
next_result
options ping
poll prepare
query real_connect
real_escape_string
real_query
reap_async_query
refresh
rollback select_db
set_charset
set_local_infile_handlersqlstate
ssl_set stat
stmt_init
thread_id thread_safeuse_result
warning_count
PHP Network
checkdnsrr() closelog()dns_check_record()
dns_get_mx()
dns_get_record()
fsockopen()
gethostbyaddr()
gethostbyname()
gethostbynamel()
gethostname()
getmxrr()
getprotobyname() getprotobynumber()getservbyname()
getservbyport()
header_register_callback()header_remove()
header()
headers_list() headers_sent() http_response_code()inet_ntop()
inet_pton()
ip2long()
long2ip() openlog()pfsockopen()
setcookie()
setrawcookie()
socket_get_status()
socket_set_blocking() socket_set_timeout()syslog()
PHP Output Control
flush() ob_clean()
ob_end_clean() ob_end_flush()ob_flush()
ob_get_clean() ob_get_contents()ob_get_flush()
ob_get_length()
ob_get_level()
ob_gzhandler()
ob_implicit_flush()
ob_list_handlers()
ob_start()
output_add_rewrite_var() output_reset_rewrite_vars()PHP RegEx
preg_filter() preg_grep()preg_last_error()
preg_match()
preg_match_all()
preg_replace
preg_replace_callback preg_replace_callback_arraypreg_split
preg_quote
PHP SimpleXML
__construct() __tostring()addAttribute()
addChild()
asXML()
attributes() children()count()
getDocNamespaces() getName()getNamespaces()
registerXPathNamespace()saveXML()
simplexml_import_dom() simplexml_load_file() simplexml_load_string()xpath()
current() getchildren()haschildren()
key()
next() rewind()
valid() PHP
Stream PHP String
addcslashes() addslashes()bin2hex()
chop() chr()
chunk_split() convert_cyr_string()convert_uudecode()
convert_uuencode()
count_chars()
crc32()
crypt() echo()
explode() fprint()
get_html_translation_table()hebrev()
hebrevc()
hex2bin() html_entity_decode()htmlentities()
htmlspecialchars_decode()htmlspecialchars()
implode()
join() lcfirst()
levenshtein()
localeconv()
ltrim() md5()
md5_file()
metaphone() money_format()nl_langinfo()
nl2br()
number_format() ord()parse_str()
print() printf()
quoted_printable_decode() quoted_printable_encode() quotemeta() rtrim()setlocale()
sha1() sha1_file()
similar_text()
soundex()
sprintf() sscanf()
str_getcsv()
str_ireplace() str_pad()str_repeat()
str_replace() str_rot13()str_shuffle()
str_split()
str_word_count()
strcasecmp()
strchr()
strcmp() strcoll()
strcspn()
strip_tags() stripcslashes()stripslashes()
stripos()
stristr() strlen()
strnatcasecmp()
strnatcmp()
strncasecmp()
strncmp()
strpbrk() strpos()
strrchr()
strrev() strripos()strrpos()
strspn() strstr()
strtok() strtolower()strtoupper()
strtr()
substr() substr_compare()substr_count()
substr_replace()
trim()
ucfirst() ucwords()vfprintf()
vprintf() vsprintf()wordwrap() PHP
Variable Handling
boolval()
debug_zval_dump() doubleval()is_countable()
empty() floatval()
get_defined_vars()
get_resource_type() gettype() intval() is_array()is_bool()
is_callable() is_double() is_float() is_int()is_integer()
is_iterable() is_long() is_null() is_numeric()is_object()
is_real() is_resource()is_scalar()
is_string() isset() print_r() serialize()settype() strval()
unserialize()
unset() var_dump()
var_export() PHP XML Parser utf8_decode() utf8_encode()xml_error_string()
xml_get_current_byte_index() xml_get_current_column_number() xml_get_current_line_number() xml_get_error_code() xml_parse() xml_parse_into_struct() xml_parser_create_ns()xml_parser_create()
xml_parser_free()
xml_parser_get_option() xml_parser_set_option() xml_set_character_data_handler() xml_set_default_handler() xml_set_element_handler() xml_set_end_namespace_decl_handler() xml_set_external_entity_ref_handler() xml_set_notation_decl_handler()xml_set_object()
xml_set_processing_instruction_handler() xml_set_start_namespace_decl_handler() xml_set_unparsed_entity_decl_handler()PHP Zip
zip_close() zip_entry_close() zip_entry_compressedsize() zip_entry_compressionmethod() zip_entry_filesize()zip_entry_name()
zip_entry_open()
zip_entry_read() zip_open() zip_read() PHP TimezonesPHP TUTORIAL
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PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. PHP 7 is the latest stable release. Start learning PHP now » ------------------------- EASY LEARNING WITH "PHP TRYIT" With our online "PHP Tryit" editor, you can edit the PHP code, and click on a button to view the result.EXAMPLE
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