What is the role of installing PHP?

The functions of installing PHP: 1. Write server-side scripts, which is the main target area of ​​php. You can use a web browser to access the output of the PHP program; 2. Write command line scripts, which can be used to process simple 3. Write desktop applications. You can use PHP-GTK to write these programs.

The operating environment of this tutorial: Windows 7 system, PHP version 8.1, Dell G3 computer.

What is the purpose of installing PHP?

Generally speaking PHP can do anything you want to implement on a web server. For example, make a blog. Implementing a SAAS application is also a piece of cake. It is also handy to write a script to temporarily process data. Or write a complex script that one day suddenly turns into a successful software business? It happened a lot in the past.

It can write a lot of things, for example:

-Server script

-Command line script

-Write desktop application

PHP scripts are mainly used in three areas:

(1) Server-side scripts. This is the most traditional and main target area of ​​PHP. Three things are required to do this: a PHP parser (CGI or server module), a web server, and a web browser. You need to install and configure PHP when running the web server. Then, you can use a web browser to access the output of the PHP program, that is, browse the PHP page on the server. If you're just experimenting with PHP programming, all of this can be run on your home computer.

(2) Command line script. You can write a PHP script and don't need any server or browser to run it. This way, only the PHP parser is needed to execute. This usage is ideal for daily running scripts that rely on cron (Unix or Linux environments) or Task Scheduler (Windows environments). These scripts can also be used to process simple text. See PHP's command line mode for more information.

Write desktop applications. For desktop applications with graphical interfaces, PHP may not be the best language, but if the user is very proficient in PHP and wants to use some advanced features of PHP in client applications, they can use PHP-GTK to write these programs. In this way, you can also write cross-platform applications. PHP-GTK is an extension of PHP that is not included in the commonly distributed PHP packages.

(3) PHP can be used on all mainstream operating systems, including Linux, various variants of Unix (including HP-UX, Solaris and OpenBSD), Microsoft Windows, Mac OS X, RISC OS, etc. Today, PHP already supports most web servers, including Apache, Microsoft Internet Information Server (IIS), Personal web Server (PWS), Netscape, iPlant server, Oreilly Website Pro Server, Caudium, Xitami, OmniHTTPd, etc. For most servers, PHP provides a module; some PHP supports the CGI standard, allowing PHP to work as a CGI processor.

Recommended learning: "PHP Video Tutorial"

The above is the detailed content of What is the role of installing PHP?. For more information, please follow other related articles on the PHP Chinese website!