What are the characteristics of php

PHP is a server-side, cross-platform, html-embedded scripting language

Fast execution speed: PHP is a powerful The syntax of CGI scripting language is a mixture of C, Java, Perl and PHP-style new syntax. It executes web pages faster than CGI, Perl and ASP. This is its first outstanding feature. (Recommended learning: PHP video tutorial)

has good openness and scalability: PHP is free software, its source code is completely open, and any programmer can extend additional functions for PHP very easy.

Database support: PHP supports a variety of mainstream and non-mainstream databases.

Such as:, Adabas D, DBA, dBase, dbm, filePro, Informix, InterBase, mSQL, MySQL, Microsoft SQL Server, Solid, Sybase, ODBC, oracle, oracle 8, PostgreSQL, etc. Among them, PHP and MySQL are now an excellent combination, and their combination can run across platforms.

Object-oriented programming: PHP provides classes and objects. In order to realize object-oriented programming, PHP4 and higher versions provide new functions and features, including object overloading, reference technology, etc.

Fast version update: Compared with ASP, which is updated only once every few years, PHP's update speed is much faster, because PHP is updated every few weeks.

It has rich functions: from object-based design, structured features, database processing, network interface applications, secure coding mechanisms, etc., PHP covers almost all functions of all websites.

Scalability: Traditionally, the interaction of web pages is achieved through CGI. The scalability of CGI programs is not ideal because it opens a separate process for each running CGI program.

The solution is to compile the interpreter of the language commonly used to write CGI programs into your web server (such as mod_perl, JSP). PHP can be installed this way, although few people are willing to install it CGI this way. Embedded PHP can be more scalable.

Comprehensive functions: PHP includes graphics processing, encoding and decoding, compressed file processing, xml parsing, HTTP authentication, cookie, pop3, snmp, etc.

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