As the server-side scripting language of dynamic websites, one of the most important features of PHP is its powerful database operation function. Compared with other programming languages, PHP can directly connect multiple databases, so PHP has obvious advantages in data processing speed.
Common databases supported by PHP are : dBase, DBM, Informix, InterBase, MSQL, Microsoft SQL Server, MySQL, Sybase, Oracle 8, Oracle 8i, PostgreSQL, etc.
PHP also has the following important features ：
1. Support for various web servers
PHP can run on the following Web servers: Microsoft Personal Web Server (PWS), Microsoft Internet Information Server (IIS), Apache, and so on
2. Cross platform
PHP can run on Windows 9X, Windows NT, Windows Me, Sco Unix, Sun Solaris, Turbo Linux and other platforms. For Unix and Linux, PHP can be supported as long as the platform supports the Apache Web server. When the user changes the server platform, it can run directly without rewriting the PHP code. Apart from PHP, no server side scripting language supports such a wide range of system platforms.
3. Embedded
PHP statements can be embedded inside HTML. As a result, dynamic web page design (PHP programming) and static web page design (web page layout design) are separated, which greatly improves the Website production Development efficiency.
4. Free features
PHP, which supports the GNU Treaty, is open source software. Users can get PHP source code for free to analyze and even rewrite it. There are many PHP sites on the network. Users can find many PHP source codes on these sites and use them for free.
5. Scalability
PHP has built-in functions such as file upload, password authentication, cookies/session operation, dynamic graphics generation, and email sending and receiving, which users can call at will. In addition, users can also write their own extension modules (codes), or add functional modules downloaded from the network to enhance the functions of PHP.
It is worth mentioning that PHP also has good support for XML, which represents the future Internet content service technology. Users can use PHP to generate XML chess pieces.
