CodeIgniter：无法使用提供的设置连接到数据库服务器错误消息 [英] CodeIgniter: Unable to connect to your database server using the provided settings Error Message

问题描述

我一直使用CI只是罚款使用MySQL驱动程序。我想使用mysqli驱动程序，但是一旦我改变它（只是添加'i'在mysql结束，并添加端口号）我得到以下错误信息

I have been using CI just fine using the MySQL driver. I want to use the mysqli driver instead, but as soon as I change it (just add the ‘i’ at the end of mysql, and added the port number) I get the following error message

A Database Error Occurred

Unable to connect to your database server using the provided settings.

Filename: core/Loader.php

Line Number: 232 

b $ b

我的设置如下所示：

my setting look like this:

$db['default']['hostname'] = $hostname;
$db['default']['username'] = $username;
$db['default']['password'] = $password;
$db['default']['database'] = $database;
$db['default']['dbdriver'] = 'mysqli';
$db['default']['port']     = "3306";  
$db['default']['dbprefix'] = '';
$db['default']['pconnect'] = TRUE;
$db['default']['db_debug'] = TRUE;
$db['default']['cache_on'] = FALSE;
$db['default']['cachedir'] = '';
$db['default']['char_set'] = 'utf8';
$db['default']['dbcollat'] = 'utf8_general_ci';
$db['default']['swap_pre'] = '';
$db['default']['autoinit'] = TRUE;
$db['default']['stricton'] = FALSE; 

where
$hostname = 'localhost';
$username = 'myusernamegoeshere';
$password = 'mypasswordgoeshere';
$database = 'mydatabasenamegoeshere'; 

使用：
CI 2.0.2
php 5.3.4
Apache / 2.2.17（Unix）
mysql 5.5.13
mysql.default_port 3306

Using: CI 2.0.2 php 5.3.4 Apache/2.2.17 (Unix) mysql 5.5.13 mysql.default_port 3306

我做错了什么？

感谢您，

推荐答案

对我来说，问题是在php.ini文件。属性mysql.default_socket指向一个不存在的目录中的文件。该属性指向 /var/mysql/mysql.sock ，但在OSX中，该文件位于 /tmp/mysql.sock 。

For me the issue was in the php.ini file. The property mysql.default_socket was pointing to file in a non-existent directory. The property was pointing to /var/mysql/mysql.sock but in OSX, the file was located in /tmp/mysql.sock.

一旦我更新了php.ini中的条目并重新启动了网络服务器，问题就解决了。

Once I updated the entry in php.ini and restarted the webserver, the issue was resolved.

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