Introduction to PHP

PHP is a server-side scripting language.

Things you should have

The academic requirements for learning PHP are not high, and the mathematics level is not high either. You only need to know the following:

Have a computer

Junior high school education and above

Must be able to type (Wubi and Pinyin are acceptable)

Be able to word (Microsoft office software Text editing software)

Be able to surf the Internet (QQ, write emails, play WeChat, read novels, watch movies, register website accounts, online shopping, etc.)

Have a persistent heart

It would be better if you know html + css.

What should you do if you don’t know HTML + CSS? You can visit our website homepage to learn these tutorials

What is PHP?

PHP (full name: PHP: Hypertext Preprocessor, that is, "PHP: Hypertext Preprocessor") is a general open source scripting language.

PHP scripts are executed on the server.

PHP is free to download and use.

PHP is simple and 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

PHP code is executed on the server, and the result is returned to the browser in the form of pure HTML

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, and modify 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 export 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 servers currently in use Compatible (Apache, IIS, etc.)

PHP provides extensive database support

PHP is free and can be downloaded from the official PHP resource: www.php.net

PHP is easy to learn and runs efficiently on the server side