PHP, originally known as Personal Home Pages, is a popular open-source server-side scripting language used for web development. It was created in 1994 by Rasmus Lerdorf as a simple set of Common Gateway Interface (CGI) scripts to track visitors to his online resume. As the internet and web development grew in popularity, Lerdorf rewrote the scripts and released it as “PHP/FI” (Personal Home Page/Forms Interpreter) in 1995. This version allowed for the creation of dynamic web pages with the use of HTML forms. However, it was still a relatively simple language with limited functionality.
In 1997, two developers, Andi Gutmans and Zeev Suraski, rewrote the core of PHP, creating the Zend Engine. This new engine gave PHP the ability to handle more complex tasks and processes, making it a more robust and powerful language. It also introduced the concept of object-oriented programming (OOP) to PHP, allowing developers to create reusable code and more efficient programs.
With the release of PHP 3 in 1998, the language gained even more popularity due to its improved performance and support for Windows and Unix-based systems. It also introduced the MySQL database driver, making it easier for developers to integrate databases into their web applications.
The next major release, PHP 4, came in 2000 and brought significant changes to the language. It introduced a new error-handling model, improved support for OOP, and added many new features, such as sessions and an integrated XML parser. This version solidified PHP’s place as a powerful programming language and cemented its popularity among web developers.
In 2004, PHP 5 was released, bringing even more improvements and enhancements to the language. It included a new and improved OOP model, support for the MySQLi extension for improved database connectivity, and the introduction of the Zend Framework, a collection of reusable code libraries for web development.
PHP continued to evolve and improve with each new release, with PHP 7 being one of the most significant updates to date. Released in 2015, it provided a major performance boost, with up to 2-3 times faster execution compared to previous versions. It also introduced new features such as scalar type declaration, anonymous classes, and the spaceship operator, making PHP even more efficient and powerful.
Today, PHP is one of the most widely used programming languages for web development, powering over 78% of all websites on the internet. It has come a long way from its humble beginnings as a simple set of CGI scripts, evolving into a robust and versatile language that continues to adapt and improve with each new release. Its evolution from Personal Home Pages to a powerful programming language has made it an essential tool for web developers worldwide.