Anforderungen
on ubuntu you can get it from Synaptic Package Manager
just search words "gmp",you'll find it.
Installation
Um diese Funktionen verfügbar zu machen, müssen Sie PHP mit GMP-Support kompilieren. Verwenden Sie dazu die --with-gmp -Option.
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User Contributed Notes
Installation
admin at ee-dd dot com
03-Oct-2011 09:18
MiquelFire
24-Aug-2009 12:40
With PHP 5.3 on Windows, you need to use the VC9 build, otherwise you will not have the dll to enable GMP
Chris
02-Mar-2009 11:49
Under Windows you will need to uncomment the line
;extension=php_gmp.dll
within the php.ini and restart Apache.
arancaytar dot ilyaran at gmail dot com
30-Dec-2008 11:48
Note that this parameter requires a path, as in --with-gmp=DIR, if gmp is installed in a non-standard location, which is almost always the case when you are building your own PHP installation in your home directory.
Obvious, but it's an easy mistake.