Online PHP editor | refs for pS2Qd

<?php function crypto_rand_secure($min, $max) { $range = $max - $min; if ($range < 1) return $min; // not so random... $log = ceil(log($range, 2)); $bytes = (int) ($log / 8) + 1; // length in bytes $bits = (int) $log + 1; // length in bits $filter = (int) (1 << $bits) - 1; // set all lower bits to 1 do { $rnd = hexdec(bin2hex(openssl_random_pseudo_bytes($bytes))); $rnd = $rnd & $filter; // discard irrelevant bits } while ($rnd >= $range); return $min + $rnd; } function getToken($length) { $token = ""; $codeAlphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; $codeAlphabet.= "abcdefghijklmnopqrstuvwxyz"; $codeAlphabet.= "0123456789"; $max = strlen($codeAlphabet) - 1; for ($i=0; $i < $length; $i++) { $token .= $codeAlphabet[crypto_rand_secure(0, $max)]; } return $token; } echo getToken(30); ?>