How to find php extension_dir

The extension_dir is the php system path into which the thirdparty installations were installing the  modules like eaccelerator , memcache , etc,.  Sometimes this path will be missing from  server php.ini .  So then you need to find out the correct extension_dir and  update it in php.ini . So that the installed extension will work fine.

So the question is how to find the extension_dir . There will be a php-config file with every php  installations . You can find it from this file . To find it easily run the following command in shell

# grep extension_dir=  `which php-config`

The above result will show an out put like the following ,

#  grep extension_dir=  `which php-config`



Please note the path will  be different in your server .