Is php a scripting language?

PHP ("PHP: Hypertext Preprocessor", abbreviation of Hypertext Preprocessor) is a widely used open source multi-purpose scripting language. It can be embedded into HTML and is especially suitable for the web. development.

PHP (PHP: Hypertext Preprocessor) is a scripting language executed on a computer, mainly It is used to process dynamic web pages, also includes a command line interface (command line interface), or generates a graphical user interface (GUI) program. (Recommended learning: PHP programming from entry to proficiency)

PHP was first invented by Rasmus Lerdorf in 1995. Now the substantive standard of PHP is provided by the PHP Group and the Open Source Society Group maintenance. PHP uses PHP License as a license agreement, but because this agreement restricts the use of the PHP name, it is incompatible with the open source license agreement GPL.

PHP is currently widely used, especially in server-side web program development. Generally speaking, PHP is mostly executed on a web server, and the web pages browsed by users are generated by executing PHP code. PHP can run on almost any operating system, and using PHP is completely free. According to April 2007 statistics, PHP has been installed on more than 20 million websites and 1 million servers.

PHP, originally abbreviated as Personal Home Page, is a set of CGI tool programs developed by Rasmus Lerdorf in c language to replace the Perl program originally used in order to maintain personal web pages. Initially these tools were used to display Rasmus Lerdorf's resume and to count web traffic. He integrated these programs with some form interpreters and called them PHP/FI. PHP/FI can be connected to the database to generate simple dynamic web programs.

Rasmus Lerdorf released PHP/FI to the public on June 8, 1995, hoping to speed up program development and find errors through the community. This released version, named PHP 2, already had some of the prototypes of today's PHP, such as Perl-like variable naming, form processing capabilities, and the ability to embed execution into HTML. The program syntax is also similar to Perl, with more restrictions, but it is simpler and more flexible.

In 1997, two Israeli programmers working at Technion IIT: Zeev Suraski and Andi Gutmans, rewrote PHP's parser and became the basis of PHP 3. PHP was also renamed at this time For PHP: Hypertext Preprocessor. After several months of testing, the development team released PHP/FI 2 in November 1997, then began open testing of PHP 3, and finally released PHP 3 in June 1998.

Zeev Suraski and Andi Gutmans began to rewrite the core of PHP after the release of PHP 3. The parser released in 1999 was called Zend Engine. They also established Zend Technologies in Ramat Gan, Israel, to manage it. Development of PHP.

On May 22, 2000, PHP 4 based on Zend Engine 1.0 was officially released, and PHP 5 was released on July 13, 2004. PHP 5 used the second generation of Zend Engine. PHP includes many new features, such as enhanced object-oriented functions, the introduction of PDO (PHP Data Objects, an extension function library for accessing databases), and many performance enhancements. Currently, PHP 4 will no longer be updated to encourage users to move to PHP 5.

In 2008, PHP 5 became the only PHP version under development. In the future, PHP 5.3 will add Late static binding and some other functional enhancements. The development of PHP 6 is also in progress. The main improvements include the removal of register_globals, magic quotes and Safe mode.

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