server-side, HTML-embedded scripting language (Apache 2 module) This package provides the PHP5 module for the Apache 2 webserver (as found in the apache2-mpm-prefork package). Please note that this package ONLY works with Apache's prefork MPM, as it is not compiled thread-safe. The following extensions are built in: bcmath bz2 calendar Core ctype date dba dom ereg exif fileinfo filter ftp gettext hash iconv json libxml mbstring mhash openssl pcre Phar posix Reflection session shmop SimpleXML soap sockets SPL standard sysvmsg sysvsem sysvshm tokenizer wddx xml xmlreader xmlwriter zip zlib. PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.