很多小伙伴想知道如何解决php与mysql连接不上？那么今天小编就给大家带来几个完美的解决方法，如果有需求的小伙伴可以仔细阅读一下这篇文章，我们直接往后看。
解决方法如下：
（一）获取 MySQL socket 路径
通过控制台进入 MySQL, 输入命令: STATUS, 查找 UNIX socket 值
#mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or g. Your MySQL connection id is 8 Server version: 5.7.11 MySQL Community Server (GPL) Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type ‘help;‘ or ‘h‘ for help. Type ‘c‘ to clear the current input statement. mysql> STATUS -------------- mysql Ver 14.14 Distrib 5.7.11, for osx10.9 (x86_64) using EditLine wrapper Connection id: 8 Current database: Current user: root@localhost SSL: Not in use Current pager: less Using outfile: ‘‘ Using delimiter: ; Server version: 5.7.11 MySQL Community Server (GPL) Protocol version: 10 Connection: Localhost via UNIX socket Server characterset: utf8 Db characterset: utf8 Client characterset: utf8 Conn. characterset: utf8 UNIX socket: /tmp/mysql.sock Uptime: 8 days 15 hours 1 min 17 sec Threads: 2 Questions: 21 Slow queries: 0 Opens: 114 Flush tables: 1 Open tables: 0 Queries per second avg: 0.000 --------------
（二）mysql.default_socket、mysqli.default_socket、pdo_mysql.default_socket和通过MySQL UNIX socket不一样, 这就是mysql_connect();警告的原因: PHP 配置 mysql 有问题.
（三）重新配置 PHP, 打开php.ini修改mysql.default_socket、mysqli.default_socket、pdo_mysql.default_socket 的值为: /tmp/mysql.sock
pdo_mysql.default_socket=/tmp/mysql.sock mysql.default_socket=/tmp/mysql.sock mysqli.default_socket=/tmp/mysql.sock
或者修改my.cnf的socket：
[client] socket=/tmp/mysql.sock [mysqld] socket=/tmp/mysql.sock
以上就是小编给大家带来的解决php与mysql连接不上的问题，希望大家通过阅读小编的文章之后能够有所收获！如果大家觉得小编的文章不错的话，可以多多分享给有需要的人。
