Online PHP editor | output for 0Oqsk

<?php mt_srand(42); for ($i = 0; $i < 20; $i++) { $key = generate_key(); $len = strlen($key) echo "{$key} {$len}\n"; } function generate_key() { return base64_urlencode(rand_buffer(48)); } function base64_urlencode($buf) { return str_replace( array('+', '/', '='), array('-', '_', ''), base64_encode($buf) ); } function rand_buffer($n) { if (function_exists("openssl_random_pseudo_bytes")) { return openssl_random_pseudo_bytes($n); } $buf = ""; for ($i = 0; $i < $n; $i++) { $buf .= chr(mt_rand(0, 255)); } return $buf; }