3v4l.org

run code in 300+ PHP versions simultaneously
<?php $time = floor(microtime(true) * 1000); $uid = 1 << 45 + 9 + 9 | random_int(0, 0b111111111) << 45 + 9 | $time << 9 | random_int(0, 0b111111111); $uid = dechex($uid); $uid = hex2bin($uid); $uid = base64_encode($uid); $uid = str_replace(['=', '+', '/'], ['', '-', '_'], $uid); var_dump($uid);
preferences:
24.49 ms | 411 KiB | 5 Q