Why Is My PHP MySQL Connection Refusing Connections? (SQLSTATE[HY000] [2002])

Failed PHP Connection: "SQLSTATE[HY000] [2002] Connection refused" Resolved

When attempting to establish a PHP connection to a MySQL database hosted on phpMyAdmin, you may encounter the following error: "Connection failed: SQLSTATE[HY000] [2002] Connection refused." This issue can arise due to an incorrect connection configuration.

In the code provided:

$servername = "127.0.0.1";
$username = "root";
$password = "root";

Port Configuration:

Initially, the error "No such file or directory" was encountered when using "localhost" as the $servername. Changing it to the IP address "127.0.0.1" resolved this issue. However, the connection was still being refused.

The culprit was an incorrect port configuration. MAMP typically runs MySQL on port 8889. Modifying the connection string to the following resolved the "Connection refused" error:

$conn = new PDO("mysql:host=$servername;port=8889;dbname=AppDatabase", $username, $password);

Despite this fix, using "localhost" for $servername still resulted in the same error. This indicates that there may be additional configuration issues or restrictions within your MAMP setup.

Additional Tips:

• Ensure that MySQL is running and accepting connections on port 8889.
• Check your firewall settings to confirm that port 8889 is open for incoming connections.
• If necessary, consider resetting or reconfiguring MAMP to address any potential underlying issues.

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