How can one troubleshoot common errors, such as the MySQL server not responding, when setting up PHP and MySQL on a local server?

When setting up PHP and MySQL on a local server, a common issue is the MySQL server not responding. This could be due to incorrect server settings or firewall restrictions. To troubleshoot this issue, ensure that the MySQL server is running, check the connection settings in your PHP code, and verify that the firewall allows connections to the MySQL server. 

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";
?>

Keywords

MySQL server PHP local server troubleshooting errors

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