Please bear with me. I think my question is so stupid, it may be the reason I cannot find the answer on the web.
I need to use a PHP function called mcrypt_encrypt(). So I take a look at php.ini to activate the mcrypt extension, searching for:
But there is NOTHING about mcrypt in my php.ini... So I install the extension using yum :
yum install php-mcrypt
Everything works !
But, looking back at the php.ini file, I was hoping to find a line about the mcrypt extension being activated. Nothing.
I guess my question is more about how yum works: How can yum install and activate a php extension without ever modifying the php.ini file ?