php加密javascrpit
原本的js是一段加密的方法
function checkform()
{
var dcode;
var dcode1;
var dcode2;
dcode=document.form1.pwd.value;
dcode1="";
dcode2=1275903582
dcode2=""+dcode2*137;
var tmpstr;
var dcodelen;
dcodelen=dcode.length;
for (i=1;itmpstr = dcode.substring(i-1,i);
dcode1=dcode1 + String.fromCharCode(tmpstr.charCodeAt(0)-i-dcode2.substring(i-1,i));
}
document.form1.pwd.value=dcode1;
}
这是我仿照写的php代码 但始终有错
//加密
function encryption($dcode){
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$dcode1=''; $dcode2=1275903582; $dcode2 = "".$dcode2 * 137; $tmpstr=''; for ($i=1;$i<=count($dcode);$i++) { $tmpstr = substr($dcode,$i-1,1); $tmpstr = $this->charCodeAt($tmpstr, 0); $num = $this->fromCharCode($tmpstr-$i-substr($dcode2,$i-1,1)); $dcode1=$dcode1 + $num; } $encryDcode=$dcode1; print_r($encryDcode); die(); return $encryDcode; } function fromCharCode($codes) {
if (is_scalar($codes))
$codes= func_get_args();
$str= '';
foreach ($codes as $code)
$str.= chr($code);
return $str;
}
function charCodeAt($str, $index)
{
$char = mb_substr($str, $index, 1, 'UTF-8');
if (mb_check_encoding($char, 'UTF-8'))
{
$ret = mb_convert_encoding($char, 'UTF-32BE', 'UTF-8');
return hexdec(bin2hex($ret)); } else { return null;
}
}
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