What are the application fields of php?

1. Server-side script

This is the most traditional and main target area of ​​PHP. To carry out this work, the following three points are required:

A. PHP parser (CGI or server module)

B. Web server

C. Web browser

You need to install and configure PHP when running the web server. Then, you can use a web browser to access the output of the PHP program, that is, browse the PHP page on the server. If you're just experimenting with PHP programming, all of this can be run on your home computer.

2. Command line script

You can write a PHP script and do not need any server or browser to run it. This way, only the PHP parser is needed to execute. This usage is ideal for daily running scripts that rely on cron (Unix or Linux environments) or Task Scheduler (Windows environments). These scripts can also be used to process simple text.

3. Writing desktop applications

For desktop applications with graphical interfaces, PHP may not be the best language, but if the user is very proficient PHP, and if you want to use some advanced features of PHP in client applications, you can use PHP-GTK to write these programs. In this way, you can also write cross-platform applications.

PHP-GTK is an extension of PHP that is not included in the commonly released PHP packages.

4. PHP application fields can be expanded to a wider range.

PHP also supports the use of tools such as LDAP, IMAP, SNMP, NNTP, POP3, HTTP, COM ( Windows environment) and countless other protocols. Raw network ports can also be opened so that any other protocol can work together. PHP supports WDDX complex data exchange between all web development languages.

Regarding mutual connections, PHP already supports instant connections to Java objects, and they can be freely used as PHP objects. You can even use our CORBA extension library to access remote objects. PHP has extremely efficient text processing features, supporting everything from POSIX extensions or Perl regular expressions to XML document parsing.

In order to parse and access XML documents, PHP 4 supports SAX and DOM standards, and you can also use the XSLT extension library to transform XML documents. PHP 5 standardizes all XML extensions based on the powerful libxm2, and adds SimpleXML and XMLReader support, expanding its capabilities in XML.

5. If you extend the PHP application field to e-commerce, you will find that its Cybercash payment, CyberMUT, VeriSign Payflow Pro and MCVE functions are very useful for online transaction programs.

6. In addition, there are many other interesting extension libraries

For example: mnoGoSearch search engine function, IRC gateway function.

Recommended tutorial: PHP video tutorial

The above is the detailed content of What are the application fields of php?. For more information, please follow other related articles on the PHP Chinese website!