3v4l.org

run code in 300+ PHP versions simultaneously
<?php print("3d3d516343746d4d6d6c315669563362\n"); print(base64_decode(strrev(hex2bin("3d3d516343746d4d6d6c315669563362"))) + "\n"); print(bin2hex(strrev(base64_encode("03"))) + "\n");

preferences:
38.89 ms | 402 KiB | 5 Q