PHP 8 has a native function to retrieve the actual error message, so these helper functions are no longer necessary.
https://www.php.net/preg_last_error_msg
<?php
preg_match('/(?:\D+|<\d+>)*[!?]/', 'foobar foobar foobar');
if (preg_last_error() !== PREG_NO_ERROR) {
echo preg_last_error_msg(); // Prints "Backtrack limit exhausted"
}
?>