What are the best practices for debugging and troubleshooting MySQL connection issues within PHP classes?

To debug and troubleshoot MySQL connection issues within PHP classes, it is important to check the connection parameters such as host, username, password, and database name. Additionally, ensure that the MySQL server is running and that the user has the necessary privileges to access the database. Utilizing error handling mechanisms such as try-catch blocks and error reporting functions can help identify and resolve connection problems efficiently. 

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

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "Connected successfully"; 
} catch(PDOException $e) {
    echo "Connection failed: " . $e->getMessage();
}
?>

Keywords

MySQL PHP classes debugging troubleshooting connection issues

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