APC on Cpanel

Install APCu. APC is not supported after php 5.4

Edit php.ini

extension="apcu.so"
; APC Configuration
apc.enabled = 1
apc.shm_segments = 1
apc.shm_size = 128M
apc.max_file_size = 2M
apc.ttl = 7200
apc.user_ttl = 7200
apc.num_files_hint = 1024
apc.enable_cli = 1

Restart apache