PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used, open-source, server-side scripting language designed primarily for web development. Created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995, PHP has evolved from a simple set of Common Gateway Interface (CGI) binaries written in C to a robust language powering millions of websites. Originally, PHP stood for "Personal Home Page," reflecting its initial use for tracking visits to Lerdorf's online resume.
PHP's source code can be embedded within HTML, allowing developers to create dynamic web pages and applications. PHP excels in server-side scripting, command-line scripting, and web application development. The latest stable PHP releases are 8.3, 8.4 and 8.5. PHP 8.5, released in November 2025, introduces enhancements such as the pipe operator and new URL handling classes. PHP is compatible with all major operating systems and web servers. The PHP community is vibrant and constantly contributes to its development and improvement. The mascot of PHP is an elephant, designed by Vincent Pointier in 1998.