使用 httpd -v命令
[root@localhost ~]# httpd -v
Server version: Apache/2.2.15 (Unix)
Server built: Feb 13 2012 22:25:23
查看php的版本信息，如果是通过yum，或者是rpm包安装的，可以使用rpm -qa |grep php或者mysql来查看
[root@localhost bin]# rpm -qa|grep mysql
mysql-connector-odbc-5.1.5r1144-7.el6.i686
mysql-libs-5.1.61-4.el6.i686
mysql-5.1.61-4.el6.i686
[root@localhost bin]# rpm -qa|grep php
php-common-5.3.3-3.el6_2.8.i686
php-5.3.3-3.el6_2.8.i686
php-pear-1.9.4-4.el6.noarch
php-gd-5.3.3-3.el6_2.8.i686
php-xml-5.3.3-3.el6_2.8.i686
php-cli-5.3.3-3.el6_2.8.i686
php-pdo-5.3.3-3.el6_2.8.i686