Warning: mysql_connect(): No such file or directory 解决方案总结(操作系统: Mac)
说明:
本文主要内容参考: Mac下PHP连接MySQL报错＂No such file or directory＂的解决办法, 并进行个人补充
1. 运行环境: Mac OS X 10.11.4 (Mac 已经自带 Apache, PHP)
2. 相关文件夹:
/etc/apache2/ ##Apache 配置文件夹 /Library/WebServer/Documents/ ##Apache 默认站点 /usr/local/mysql-5.7.11-osx10.9-x86_64 ##mysql安装路径
/private/php.ini.default ##php的配置文件: 如配置 mysql.sock
>>问题原因:
For some reason mysql on OS X gets the locations of the required socket file a bit wrong, but thankfully the solution is as simple as setting up a symbolic link.
You may have a socket (appearing as a zero length file) as /tmp/mysql.sock or /var/mysql/mysql.sock but 1 or more apps is looking in the other location for it.
大神解释说: PHP 在 MySQL socket 方面, 默认的配置有问题. 那么现在只要修改 PHP 的配置文件, 配置正确的 MySQL socket 路径就可以了.
>>解决方案:
1. 获取当前 mysql.default_socket、mysqli.default_socket、pdo_mysql.default_socket 配置信息
建立一个 PHP 文件, 显示 phpinfo():
php echo phpinfo();
用浏览器打开:
在此页面，找到mysql.default_socket、mysqli.default_socket、pdo_mysql.default_socket信息:
2. 获取 Mac 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 --------------
3. 这时候, 你对比 mysql.default_socket、mysqli.default_socket、pdo_mysql.default_socket 和 通过 MySQL UNIX socket 发现不一样, 这就是 mysql_connect(); 警告的原因: PHP 配置 mysql 有问题.
4. 重新配置 PHP, 打开php.ini（默认位置是: /private/etc/php.ini ）
cd /private/etc/
chmod +rwx php.ini ##修改文件权限
vim php.ini
之后修改mysql.default_socket、mysqli.default_socket、pdo_mysql.default_socket 的值为: /tmp/mysql.sock
（一共修改三处，分别为：mysql.default_socket、mysqli.default_socket、pdo_mysql.default_socket）
注意:
若用 vim php.ini 打开的文件为空(我操作的时候, 就是这样), 说明没有 php.ini 这个文件
这个时候, 你浏览 /etc/ 文件夹下, 会有 php.ini.default 文件, 复制 php.ini.default 重命名为 php.ini , 再用 vim 修改文件内容
cd /private/etc/ cp php.ini.default php.ini ##复制 php.ini.default, 并且重命名 chmod +rwx php.ini ##修改文件权限 vim php.ini
5,重启apache
sudo apachectl restart ##重启 apache
解决啦!