Online PHP editor | output for KLtPk

<?php function from62to10($num) { $from = 62; $num = strval($num); $dict = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $len = strlen($num); $dec = 0; for($i = 0; $i < $len; $i++) { $pos = strpos($dict, $num[$i]); $dec = bcadd(bcmul(bcpow($from, $len - $i - 1), $pos), $dec); } return $dec; } function decode($url) { $file = basename($url,'.jpg'); $code = substr($file, 0, 8); if (substr($code, 0, 2) == '00') { return from62to10($code); } else { return hexdec($code); } } $url = 'http://wx4.sinaimg.cn/large/661eb95cgy1fj4iioqhmej20m80m8tc6.jpg'; $weibo = 'http://weibo.com/u/' . decode($url); echo $weibo;