What are some potential pitfalls of using the set_error_handler() function in PHP?

One potential pitfall of using the set_error_handler() function in PHP is that it can make debugging more difficult, as errors will be handled by a custom error handler instead of PHP's default error handling. This can lead to issues with error reporting and troubleshooting. To address this, it is important to ensure that the custom error handler properly logs errors and provides useful information for debugging.

// Custom error handler function
function customErrorHandler($errno, $errstr, $errfile, $errline) {
    // Log the error
    error_log("Error: [$errno] $errstr in $errfile on line $errline");
    
    // Display a user-friendly error message
    echo "An error occurred. Please try again later.";
}

// Set custom error handler
set_error_handler("customErrorHandler");