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This article mainly explains "what is PHP space". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's ideas to study and learn "what is PHP space".

PHP is the abbreviation of English Hypertext preprocessing language (PHP:Hypertext Preprocessor).

PHP is a kind of HTML embedded language. PHP is somewhat similar to Microsoft's ASP. It is a scripting language that embeds HTML documents on the server. The style of the language is similar to C language, and now it is widely used by many website programmers.

PHP's unique syntax is a mix of C, Java, Perl, and PHP's self-innovative syntax. It can execute dynamic web pages faster than CGI or Perl. Compared with other programming languages, PHP embeds the program into HTML documents to execute dynamic pages made by PHP, and its execution efficiency is much higher than that of CGI, which generates HTML tags completely. compared with JavaScript, a scripting language that also embeds HTML documents, PHP executes on the server side, making full use of the server's performance. The PHP execution engine also resides the PHP program that users often visit in memory, and other users do not need to recompile the program when they access the program again, just execute the code in memory directly, which is also one of the manifestations of the high efficiency of PHP.

PHP has very powerful functions, all the functions of CGI or JavaScript can be realized by PHP, and supports almost all popular databases and operating systems.

What is php space?

As the name implies, PHP space is a website space that supports PHP scripting language and can run PHP programs, which is different from the static space that only supports static html pages. It is a kind of dynamic space, which is not only downwards compatible with pure static web pages, but also can run web programs that interact with the server. At present, there are two operating system platforms in the mainstream php space, one is the windows+iis platform (generally supports both asp and php), the other is the linux+apache platform (only supports php, not asp), the performance difference is not obvious.

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