I have installed APC for php using
yum install pcre-devel pecl install apc restorecon /usr/lib64/php/modules/apc.so
Everything installed correctly but still i can't see APC module in phpinfo
Did you add:
Try looking for a ready-made RPM to save you the hassle. http://wiki.centos.org/AdditionalResources/Repositories is a good place to start.