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PHP Tutorial

PHP is a server-side scripting language.

Basic knowledge you should have

Before continuing to study, you need to have a basic understanding of the following:

  • HTML
  • CSS

If you want to study these subjects first, please on our home page to access these tutorials.

What is PHP?

  • PHP (full name: PHP: Hypertext Preprocessor, namely “PHP: Hypertext Preprocessor”) is a universal open source scripting language.
  • The PHP script is executed on the server.
  • PHP is free to download and use.
PHP is easy to learn for beginners.

PHP also provides many advanced features for professional programmers.

What is a PHP file?

  • PHP files can contain text, HTML, JavaScript code and PHP code
  • The PHP code is executed on the server, and the result is returned to the browser in pure HTML form
  • The default file extension for PHP files is “.php”

What can PHP do?

  • PHP can generate dynamic page content
  • PHP can create, open, read, write, and close files on the server
  • PHP can collect form data
  • PHP can send and receive cookies
  • PHP can add, delete, modify the data in your database
  • PHP can restrict users from accessing some pages on your website
  • PHP can encrypt data

With PHP, you are no longer limited to outputting HTML. You can output images, PDF files, and even Flash movies. You can also output arbitrary text, such as XHTML and XML.

Why use PHP?

  • PHP can run on different platforms (Windows, Linux, Unix, Mac OS X, etc.)
  • PHP is compatible with almost all currently used servers (Apache, IIS, etc.)
  • PHP provides extensive database support
  • PHP is free, you can download it from the official PHP resource: www.php.net
  • PHP is easy to learn and runs efficiently on the server