3v4l.org

run code in 300+ PHP versions simultaneously
<?php $orig_dec = 66251125; $dec2bin = decbin($orig_dec); $bin2dec = bindec($dec2bin); echo "original decimal number: $orig_dec <br>"; echo "new binary number: $dec2bin <br>"; echo "back to decimal: $bin2dec <br>"; ?>

preferences:
42.06 ms | 402 KiB | 5 Q