Online PHP editor | refs for qTff7

<?php mt_srand(42); for ($i = 0; $i < 20; $i++) { echo generateKey() . "\n"; } function generateKey() { return base64_urlencode(randBuffer(48)); } function base64_urlencode($buf) { return str_replace(array('+', '/', '='), array('-', '_', ''), base64_encode($buf)); } function randBuffer($n) { //try { // $buf = openssl_random_pseudo_bytes($n); //} catch (Exception $e) { $buf = ""; for ($i = 0; $i < $n; $i++) { $buf .= chr(mt_rand(0, 255)); } //} return $buf; }