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140.4 ms | 1390 KiB | 7 Q<?php
echo $a=fzz_encode('http://blog.csdn.net/fzzwake/article/details/3785884?$#%%');
echo fzz_decode($a);
function fzz_encode($str) {
for($i=0;$i<strlen($str);$i++) {
$restr .= str_pad(dechex(ord($str{$i})),2,0,STR_PAD_LEFT);
}
return $restr;
}
function fzz_decode($str) {
$arr = str_split($str,2);
foreach ((array)$arr as $val) {
$restr .= chr(hexdec($val));
}
return $restr;
}