PHP, a recursive acronym for "PHP: Hypertext Preprocessor". This is a widely-used Open Source general-purpose scripting language that is suited for Web development that can be embedded into HTML.
How PHP came into being
PHP started as a quick Perl hack written by Rasmus Lerdorf in late 1994. Over the next two to three years, it evolved into what we today know as PHP/FI 2.0. PHP/FI started to get a lot of users, but things didn't start flying until Zeev Suraski and Andi Gutmans suddenly came along with a new parser in the summer of 1997, leading to PHP 3.0. PHP 3.0 defined the syntax and semantics used in both versions 3 and 4.
Why yet another language?
People often ask "why invent yet another language; don't we have enough of them out there"? It is simply a
matter of "the right tool for the right job". Many Web developers found that existing tools and languages were not ideal for the specific task of embedding code in markup. Those developers collaborated to develop a server-side scripting language which they felt would be ideal for developing dynamic Web-based sites and
applications.
PHP was created with these particular needs in mind. Moreover, PHP code was developed for embeddment within HTML. In doing so, it was hoped that benefits such as quicker response time, improved security, and transparency to the end user would be achieved. PHP has evolved into a language, or maybe even an environment, that has a very specific range of tasks in mind.
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