What are the best practices for handling database connection errors in PHP?

When handling database connection errors in PHP, it is important to implement error handling to gracefully manage these issues. One common practice is to use try-catch blocks to catch exceptions thrown by the database connection code and handle them accordingly. Additionally, logging the errors can help in troubleshooting and resolving the issues efficiently. 

try {
    $pdo = new PDO("mysql:host=localhost;dbname=mydatabase", "username", "password");
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
    // Handle the database connection error
    echo "Connection failed: " . $e->getMessage();
    // Log the error for troubleshooting
    error_log("Database connection error: " . $e->getMessage());
}

Keywords

try-catch PDO mysqli error handling exception handling

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