How to Fix the \'mysqli_real_connect(): (HY000/2002): No such file or directory\' Error on MacOS with phpMyAdmin?

Diagnosing the "mysqli_real_connect(): (HY000/2002): No such file or directory" Error

Encountering the "mysqli_real_connect(): (HY000/2002): No such file or directory" error while attempting database connectivity with phpMyAdmin on MacOS can be frustrating. This article aims to provide a comprehensive understanding of the root cause and a concise solution to resolve this issue.

Addressing the Error Cause

The error "No such file or directory" typically occurs when phpMyAdmin is configured to connect to MySQL using a socket file. However, on MacOS, MySQL connections are typically established via a TCP/IP connection over a network. As a result, specifying 'localhost' as the hostname in phpMyAdmin's configuration leads to an attempt to utilize the socket file, which does not exist on MacOS.

Implementing the Solution

To rectify this issue, you can modify phpMyAdmin's configuration to connect to MySQL using the TCP/IP connection method. Here's how to do it:

1. Locate the phpMyAdmin configuration file: /etc/phpmyadmin/config.inc.php.
2. Open the config.inc.php file in a text editor.
3. Find the line that begins with $cfg['Servers'][$i]['host'].
4. Change the value of $cfg['Servers'][$i]['host'] from 'localhost' to '127.0.0.1'.
5. Save the config.inc.php file.

By specifying '127.0.0.1' as the hostname, phpMyAdmin will now attempt to establish a TCP/IP connection to MySQL, which should resolve the "No such file or directory" error.

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