PHP Introduction - W3Schools
PHP files can contain text, HTML, CSS, JavaScript, and PHP code; PHP code is executed on the server, and the result is returned to the browser as plain HTML; PHP files have extension ".php"
PHP Examples - W3Schools
Code Editor (Try it) With our online code editor, you can edit code and view the result in your browser
W3Schools Online Web Tutorials
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 Functions - W3Schools
PHP Built-in Functions. PHP has over 1000 built-in functions that can be called directly, from within a script, to perform a specific task. Please check out our PHP reference for a complete …
W3Schools Tryit Editor
Test and experiment with PHP code online using W3Schools Tryit Editor.
HTML Tutorial - W3Schools
At W3Schools you will find complete references about HTML elements, attributes, events, color names, entities, character-sets, URL encoding, language codes, HTTP messages, browser …
C Tutorial - W3Schools
C is a general-purpose programming language that has been widely used for over 50 years. C is very powerful; it has been used to develop operating systems, databases, applications, etc. …
HTML ISO Language Code Reference - W3Schools
ISO Language Codes. You should always include the lang attribute inside the <html> tag, to declare the language of the Web page. This is meant to assist search engines and browsers:
Learn PHP - W3Schools.com
Understand what PHP is and how to write PHP scripts. Learn PHP syntax and how to use variables and data types. Use conditional statements (if, else, switch) and loops (while, for).
PHP Data Types - W3Schools
PHP Data Types. Variables can store data of different types, and different data types can do different things. PHP supports the following data types: String; Integer; Float (floating point …