Warning: mysql_connect(): No such file or directory 解决方案总结(操作系统: Mac)

?  / 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

Warning: mysql_connect(): No such file or directory 解决方案总结(操作系统: Mac)

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