PHP, "Hypertext Preprocessor", is a general open source scripting language. PHP is a scripting language executed on the server side. It is similar to C language and is a commonly used website programming language. PHP's unique syntax mixes C, Java, Perl, and PHP's own syntax. It is conducive to learning and widely used. It is mainly suitable for the field of web development.
The php file is a file in a programming language format. More professionally, it is a web script program file embedded in HTML text. The language style is similar to The C language is similar, and the syntax combines C, Perl, Java and PHP's own innovative syntax forms, which are often widely used by website programmers.
Simply put, a PHP file is a dynamic web page file embedded in the PHP language.
This kind of file is generally executed on the server side, which can fully utilize the performance of the server and execute dynamic web pages faster than CGL and Perl. Its execution engine can also keep frequently accessed programs in the memory. Users do not need to recompile the program the next time they visit, they can directly execute the retained code, which is very efficient.
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