php错误--configure: error: mcrypt.h not found. Please reinstall libmcrypt.

step1：安装第三方yum源

            wget http://www.atomicorp.com/installers/atomic 

            sh ./atomic

            输入yes

            ok

step2：使用yum命令安装  

            yum  install   -y  php-mcrypt  libmcrypt  libmcrypt-devel

｛摘｝