The abbreviation "MAMP" stands for: Macintosh, Apache, Mysql and PHP. The macOS software application "MAMP" will quickly install the whole stack and provide a GUI for management.
The abbreviation "MAMP" stands for: Macintosh, Apache, MySQL and PHP. With just a few mouse-clicks, you can install Apache, PHP and MySQL for macOS.
MAMP installs a local server environment in a matter of seconds on your macOS computer, be it PowerBook or iMac. Like similar packages from the Windows- and Linux-world, MAMP comes free of charge.
MAMP is installed in the typical Mac fashion: very easily. MAMP will not compromise any existing Apache installation already running with your macOS. You can install Apache, PHP and MySQL without starting a script or having to change any configuration files.
Furthermore, if MAMP is no longer needed, it is sufficient to delete the MAMP folder and everything returns to its original status (i.e. MAMP does not modify any of the "normal" macOS).