MAMP is a solution stack composed of free and open-source and proprietary commercial software used together to run dynamic web sites on Apple Macintosh computers. MAMP is an acronym of Mac OS X, the operating system; Apache, the Web server; MySQL, the database management system; and P for PHP, Perl, or Python, all programming languages used for web development.
Any open source Web platform made up of these software programs and built upon Mac OS X is a MAMP. MAMP is based on a similar software bundle for Linux called LAMP. Various "AMP" packages exist for many different operating systems.
Though originally only Apache was integrated into Mac OS X, MAMP has become popular because it is free and because of the ubiquity of its components, and Mac OS X 10.5 and above ships with PHP and is MySQL-ready. When used in combination it supports application servers. MAMP may also be used with popular CMS programs like Drupal for setting up a local development environment.
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