yum install php-mysql无法安装Centos

我在安装php-mysql时遇到困难,我执行以下操作:

yum -y install php-mysql

但得到以下内容:

Loaded plugins: fastestmirror, security
Loading mirror speeds from cached hostfile
 * base: centos.escapemg.com
 * extras: mirror.chpc.utah.edu
 * updates: mirrors.xmission.com
Setting up Install Process
No package php-mysql available.
Error: Nothing to do

我做了一个yum repolist disabled并启用yum-config-manager --enable C6.1-base但仍然保持相同的没有包php-mysql可用.

在此先感谢您的帮助