What is the use of php files?

PHP is a new type of CGI programming language. It should be said that it is an embedded script file. It has many similar functions to ASP and JSP. The only difference is that ASP requires the explanation of the entire site to be transmitted, while PHP can be embedded in HTML code and sent together with HTML.

php can be opened with a text editor (such as notepad, emeditor, phpedit, etc.). If you want to run it, you must install the corresponding php interpreter and web service. Just support.

It was originally developed to handle some things on the website, so PHP is more often placed on the website server to automatically handle some website-related things on the server. (Recommended learning: PHP video tutorial)

Web back-end CGI programs written in PHP can be easily transplanted to different system platforms.

PHP syntax absorbs the characteristics of C language, Java and Perl, which is easy to learn and widely used. It is mainly suitable for the field of Web development.

PHP's unique syntax mixes C, Java, Perl and PHP's own syntax. It can execute dynamic web pages faster than CGI or Perl.

Compared with other programming languages, dynamic pages made with PHP embed the program into the HTML (an application under the standard universal markup language) document for execution, and the execution efficiency is higher than that of completely generating HTML tags. CGI is much higher; PHP can also execute compiled code. Compilation can achieve encryption and optimize code running, making the code run faster.

PHP features:

1. PHP’s unique syntax mixes C, Java, Perl and PHP’s innovative syntax.

2. PHP can execute dynamic web pages faster than CGI or Perl - in terms of dynamic pages, compared with other programming languages,

PHP embeds programs into HTML documents. The execution and execution efficiency are much higher than CGI that completely generates HTML tags;

PHP has very powerful functions, and all CGI functions can be realized by PHP.

3. PHP supports almost all popular databases and operating systems.

4. The most important thing is that PHP can be extended with C and C!

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