PHP is an acronym for PHP Hypertext Preprocessor. This method is called recursive abbreviation.
PHP has many uses, especially web site development. Fast, flexible, and practical makes php better to develop any website.
PHP is an HTML embedded scripting language. The php file ends with .php. Many of its syntax comes from C, Java and Perl, and has several unique features of PHP. The main goal of the language is to allow Web developers to quickly write dynamically generated web pages.
Main application areas of php script
Server-side script: the main target area. To carry out this work, you need to have three points: a php parser (CGI or server module), a web server, and a web browser.
Command line script: write a php script, only need php parser to execute. It is an ideal choice for those who rely on cron (linux) or task scheduler (windows) to run scripts.
Desktop applications: php is not good at making graphical interfaces, but if users are proficient in php and some advanced features of php, they can use php-gtk to write desktop applications.
Know php
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PHP can be used on all major operating systems, supports most web servers, and PHP can work as a CGI processor.
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PHP can output html, php, pdf, flash, xml. PHP can automatically generate these files, open up a cache of dynamic content on the server, and print them out directly or store them in the file system.
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PHP supports a wide range of databases. Use abstraction layer such as PDO, or connect to any database that supports ODBC standard through ODBC extension.
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PHP supports services such as LDAP, IMAP, SNMP, NNTP, POP3, HTTP, COM (Windows environment) and other protocols. You can also open the original network port so that any other protocol can work together. PHP supports WDDX complex data exchange with all web development languages. Regarding interconnection, PHP already supports instant connection to Java objects and can transparently use them as PHP objects.
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PHP has extremely effective text processing features, including Perl Compatible Regular Expressions (PCRE) and many extensions and tools for parsing and accessing XML documents.
**PHP GTK **: php development client application C/S.
pear:php open source development kit. expand. (Similar to composer)