编辑代码

<?php
echo hex2bin("3d3d516343746d4d6d6c315669563362");

echo "\n";

echo strrev(hex2bin("3d3d516343746d4d6d6c315669563362"));

echo "\n";

echo base64_decode(strrev(hex2bin("3d3d516343746d4d6d6c315669563362")));
?>