What are common pitfalls when testing PHP scripts and how can they be avoided?

One common pitfall when testing PHP scripts is not properly handling errors and exceptions, which can lead to unexpected behavior and make debugging difficult. To avoid this, always use try-catch blocks to catch exceptions and handle errors gracefully.

try {
    // Your PHP code here
} catch (Exception $e) {
    echo 'An error occurred: ' . $e->getMessage();
}