Error Handling

10. Handling errors using try-catch blocks.

<?php
function divide($numerator, $denominator) {
    if ($denominator == 0) {
        throw new Exception("Division by zero.");
    }
    return $numerator / $denominator;
}

try {
    echo divide(10, 2); // Output: 5
    echo divide(10, 0); // This will throw an exception
} catch(Exception $e) {
    echo "Error: " . $e->getMessage();
}
?>