Online PHP editor | refs for vDUDP

<?php echo gmdate('Y-m-d\TH:i:s\Z'); $created = "2015-08-25T10:45:55Z"; $bytes = array(219,237,93,18,84,210,254,168,120,82,56,138,97,64,219,199,173,111,217,208,167,150,79,50,114,227,40,191,210,188,233,34); $randomString = vsprintf(str_repeat('%c', count($bytes)), $bytes); $private_key = 'aDknWCcwJEsuNjRpJS52ZnN4Ti1MRDk1M2cyNU5N'; $nonce = hash('sha512', $randomString); echo $nonce;