How can PHP developers effectively troubleshoot and debug database connection issues in their scripts?

To effectively troubleshoot and debug database connection issues in PHP scripts, developers can start by checking the database credentials, ensuring the database server is running, and verifying the connection settings in the PHP script. They can also enable error reporting and logging to capture any errors that may occur during the connection process. 

<?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);
} else {
    echo "Connected successfully";
}

// Close connection
$conn->close();
?>

Keywords

PHP database connection debugging error handling troubleshooting

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