LAMP源码环境搭建完毕好 apache重启报如下错误：
httpd: Syntax error on line 54 of /usr/local/apache/conf/httpd.conf: Cannot load /usr/local/apache/modules/
libphp5.so into server: /usr/local/apache/modules/libphp5.so: undefined symbol: OnUpdateLong
解决办法：
把/usr/local/apache2/modules的libphp5.so删除，重新删除php目录，重新安装php
libphp5.so: undefined symbol: OnUpdateLong
原文：http://9873290.blog.51cto.com/9863290/1890813