PHP, a nested abbreviated name, is an abbreviation for the English Super Text preprocessing language (Php:hypertext preprocessor). PHP is an HTML embedded language, PHP and Microsoft's ASP quite a bit similar, is a server-side implementation of embedded HTML document scripting language, language style has similar to C language, is now widely used by many web site programmers. PHP's unique syntax mixes C, Java, Perl, and PHP's self-innovative syntax. It can perform dynamic Web pages more quickly than CGI or Perl. Dynamic pages made with PHP are compared to other programming languages, and PHP is executed in an HTML document, which is much more efficient than CGI, which is also embedded in the HTML document, and PHP is executed on the server side, compared to the scripting language JavaScript Components take advantage of the performance of the server, the PHP execution engine will also be the user frequently access to the PHP program in memory, other users in one visit to the program does not need to be honest compiler, as long as the direct execution of in-memory code, which is the embodiment of PHP efficiency. PHP has a very powerful feature, all CGI or JavaScript functionality PHP can be implemented, and support almost all the popular database and operating system.
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