3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo bin2hex(strrev(base64_encode(123456789))); echo " "; $str = "3d3d516343746d4d6d6c31566956336"; echo $str; echo " "; $b64 = base64_decode($str); echo $b64; echo " "; $strrev = strrev($str); echo $strrev; echo " "; $hex2bin = base64_decode($str); echo $hex2bin; echo " "; echo base64_decode(strrev(hex2bin($str)));

preferences:
43.83 ms | 402 KiB | 5 Q