In the context of PHP and XML integration, what are some common mistakes that beginners might make and how can they be avoided?

One common mistake beginners make in PHP and XML integration is not properly handling errors or exceptions that may occur during XML parsing or manipulation. To avoid this, always use try-catch blocks when working with XML functions to catch any potential errors and handle them appropriately.

try {
    $xml = new SimpleXMLElement($xmlString);
    // Perform XML parsing or manipulation here
} catch (Exception $e) {
    echo 'Error: ' . $e->getMessage();
}