PHP is a computer programming language used in web development and server-side scripting. The acronym originally stood for "Personal Home Page," but the term has been adapted into a recursive backronym for "PHP: Hypertext Preprocessor" as its usage expanded.
PHP was originally developed in 1994 by a computer programmer Rasmus Lerdorf to maintain and expand the functionality of his personal homepage. Lerdorf created this language based on the C programming language, which uses similar syntax. PHP is used by over 200 million websites and 2 million servers. It can easily be combined with HTML on websites. PHP is available for free under the PHP license.