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@ 2014-07-26T01:34:53Z

<?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;
}

Output
Performance
VLD
References
Branches

chr: documentation ( source)
dechex: documentation ( source)
hexdec: documentation ( source)
str_pad: documentation ( source)
str_split: documentation ( source)
ord: documentation ( source)

preferences:dark modelive preview

49.9 ms | 402 KiB | 5 Q