<?php $legit_id = pack("c3", ord('5'), 0, -34); var_dump($legit_id); var_dump(check_input_data($legit_id, 'int')); function check_input_data($data, $type) { //if (preg_match('/^[0-9]{1,10}$/D', $data) && $data < 2147483647) if (preg_match('/^[\w]{1,30}$/D', $data)) return true; return false; }
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