Online PHP editor | refs for 5oXGp

<?php $needles = ['a', 'c', 'g']; $myString = 'abcdefh'; var_dump(searchString($needles, $myString)); function searchString(array $needles, string $haystack): ?array { $itemsFound = []; foreach($needles as $needle) { if (strpos($haystack, $needle) !== false) { $itemsFound[] = $needle; } } return $itemsFound; }