SQLSTATE[HY000] [2002] No such file or directory

SQLSTATE[HY000] [2002] No such file or directory

$ ps aux|grep -i mysql

root       1430  0.0  0.0 115380  1688 ?        S    11:50   0:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --socket=/var/lib/mysql/mysql.sock --pid-file=/var/run/mysqld/mysqld.pid --basedir=/usr --user=mysql
mysql      1929  0.1  5.8 1177736 467260 ?      Sl   11:50   0:24 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/log/mysqld.log --pid-file=/var/run/mysqld/mysqld.pid --socket=/var/lib/mysql/mysql.sock
jun        4802  0.0  0.0 133660  3044 pts/0    S+   12:55   0:00 mysql -u root -p
jun        7141  0.0  0.0 112668  1000 pts/1    S+   15:35   0:00 grep --color=auto -i mysql

socket=/var/lib/mysql/mysql.sock

修改 php.ini中的 

do_mysql.default_socket=/var/lib/mysql/mysql.sock

重啓服務。

由於以前錯誤是由於找不到mysql.sock