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<?php mt_srand(42); for ($i = 0; $i < 20; $i++) { $key = generate_key(); $len = count($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($n) { // return openssl_random_pseudo_bytes($n); $buf = ""; for ($i = 0; $i < $n; $i++) { $buf .= chr(mt_rand(0, 255)); } return $buf; }

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22.69 ms | 402 KiB | 5 Q