测试的php文件
运行后报错
 can't connect to local mysql server through socket '/tmp/mysql.sock'
但在 命令行中能进入mysql
[root@localhost local]# mysql -u root -p
enter password: 
welcome to the mysql monitor.  commands end with ; or /g.your mysql connection id is 3server version: 5.5.2-m2 source distribution
type 'help;' or '/h' for help. type '/c' to clear the buffer.
mysql> 
解决办法
chown -r root /usr/local/mysql 
chgrp -r mysql /usr/local/mysql 
chown -r root /usr/local/mysql/bin 
chgrp -r mysql /usr/local/mysql/bin 
chgrp -r mysql /var/lib/mysql 
chmod 777 /var/lib/mysql 
chown -r root /var/lib/mysql/mysql 
chgrp -r mysql /var/lib/mysql/mysql 
chmod 777 /var/lib/mysql/mysql 
chown -r root /var/lib/mysql/mysql/* 
chgrp -r mysql /var/lib/mysql/mysql/* 
chmod 777 /var/lib/mysql/mysql/* 
chmod 777 /usr/local/mysql/lib/mysql/libmysqlclient.a