What role does error handling play in executing PHP update queries for MySQL databases?

Error handling is crucial when executing PHP update queries for MySQL databases to ensure that any errors that occur during the query execution are properly handled and logged. This helps in identifying and resolving issues quickly, improving the overall robustness and reliability of the application.

// Connect to MySQL database
$mysqli = new mysqli("localhost", "username", "password", "database");

// Check for connection errors
if ($mysqli->connect_error) {
    die("Connection failed: " . $mysqli->connect_error);
}

// Execute update query
$sql = "UPDATE table_name SET column_name = 'new_value' WHERE condition";
if ($mysqli->query($sql) === TRUE) {
    echo "Record updated successfully";
} else {
    echo "Error updating record: " . $mysqli->error;
}

// Close database connection
$mysqli->close();