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php 不能连接数据库 php error Can't connect to local MySQL server
摘要:测试的php文件运行后报错Can'tconnecttolocalMySQLserverthroughsocket'/tmp/mysql.so...

测试的php文件

<?php

$link=mysql_connect('localhost','root','zz') or die(mysql_error());

mysql_select_db('test') or die('no db');

mysql_query('SET NAMES utf8');

echo 99;

?>

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

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