详细信息:http://www.php.net/manual/zh/book.apc.php
安装
#yum install php-pear
#yum install php-devel
#pecl install apc
配置
#vi /etc/php.ini
extension="/usr/lib64/php/modules/apc.so"
apc.enabled=1
查看运行状态
#cp /usr/share/pear/apc.php /root_dir_of_your_web_app