PHP

PHP is a new type of CGI programming language. It is easy to learn and use, and has fast running speed. It can quickly and easily write powerful and fast running Web background programs that can run on Windows, Unix, and Linux platforms at the same time. It has built-in For functions such as file upload, password authentication, Cookies operation, email sending and receiving, and dynamic GIF generation, PHP3 directly provides original connections for many databases, including Oracle, Sybase, Postgres, Mysql, Informix, Dbase, Solid, Access, etc., and fully supports ODBC Interface, when users change platforms, there is no need to change the PHP3 code, it can be used immediately. Php3Server is completely free. PHP4.0 provides more webserver support, such as Zeus, Netscape Enterprise, Apache Win32 module, adds a lot of performance, and fixes many bugs.

The biggest feature of PHP 7 is its greatly improved performance. In some WordPress benchmark tests, the performance can reach 3 times that of PHP 5.6.

PHP's rich support for databases is also one of the reasons for its rapid popularity. It supports the following databases or data files:

Adabas, D, DBA, dBase, dbm, filePro, Informix, InterBase, mSQL, Microsoft SQL Server, MySQL, Solid, Sybase, Oracle, PostgreSQL

On the Internet, it also supports quite a few communication protocols (protocols), including IMAP and POP3 related to email; network management system SNMP; network news NNTP; account sharing NIS; Global Information Network HTTP and Apache server; directory protocol LDAP and other network related functions.

In addition, web back-end CGI programs written in PHP can be easily ported to different operating systems. For example, if a website is first built on Linux, when the system load is too high, the entire system can be quickly moved to a SUN workstation without recompiling the CGI program. Faced with the rapid development of the Internet, this is the best choice for long-term planning.

PHP features include:

1. PHP’s unique syntax mixes C, Java, Perl and PHP’s own innovative syntax.

2. PHP can execute dynamic web pages faster than CGI or Perl - in terms of dynamic pages, compared with other programming languages,

PHP embeds programs into HTML documents for execution, and its execution efficiency is much higher than CGI that completely generates HTML tags;

PHP has very powerful functions, and all CGI functions can be realized by PHP.

3. PHP supports almost all popular databases and operating systems.

4. The most important thing is that PHP can be extended with C and C++!

PHP advantages

open source

All PHP source code is actually available.

free sex

Compared with other technologies, PHP itself is free and open source.

Quickness

The program is developed quickly, runs quickly, and the technology itself is learned quickly. Embedded in HTML: Because PHP can be embedded in the HTML language, it is comparable to other languages. Editing is simple, practical, and more suitable for beginners.

Strong cross-platform

Since PHP is a script that runs on the server side, it can run on UNIX, LINUX, WINDOWS, Mac OS, Android and other platforms.

High efficiency

PHP consumes considerably less system resources.

image processing

Use PHP to dynamically create images. PHP image processing uses GD2 by default. And can also be configured to use image magick for image processing.

object-oriented

In php4 and php5, object-oriented aspects have been greatly improved, and php can be used to develop large-scale commercial programs.

Professional focus

PHP supports mainly scripting languages, both of which are C-like languages.