This scripting language evolved without a written formal specification or standard until 2014, with the original implementation acting as the de facto standard which other implementations aimed to follow. Since 2014, work has gone on to create a formal PHP specification.
The LAMP architecture has become popular in the web industry as a way of deploying web applications. This scripting language is commonly used as the P in this bundle alongside Linux, Apache and MySQL, although the P may also refer to Python, Perl, or some mix of the three. Similar packages, WAMP and MAMP, are also available for Windows and macOS, with the first letter standing for the respective operating system. Although both PHP and Apache are provided as part of the macOS base install, users of these packages seek a simpler installation mechanism that can be more easily kept up to date.
For specific and more advanced usage scenarios, This scripting language offers a well defined and documented way for writing custom extensions in C or C++. Besides extending the language itself in form of additional libraries, extensions are providing a way for improving execution speed where it is critical and there is room for improvements by using a true compiled language. This scripting language also offers well defined ways for embedding itself into other software projects. That way this scripting language can be easily used as an internal scripting language for another project, also providing tight interfacing with the project’s specific internal data structures.
PHP received mixed reviews due to lacking support for multithreading at the core language level, though using threads is made possible by the “pthreads” PECL extension.