加密
function kPHPCrypt($strDataIn) {
return StrRevCrypt(ROT13Crypt($strDataIn));
}
function ROT13Crypt($strDataIn) {
/ /ABCDEFGHIJKLM
//NOPQRSTUVWXYZ
$newString = "";
for ($i = 0; $i < strlen($strDataIn); $i++) {
$temp = substr($strDataIn, $i, 1) ;
$asc = ord($temp);
$newChar = $temp;
if (($asc >= 65) && ($asc <= 90)) {
if ($ asc <= 65 + 12) $newChar = chr($asc + 13);
if ($asc >= 65 + 13) $newChar = chr($asc - 13);
}
if (($ asc >= 97) && ($asc <= 122)) {
if ($asc <= 97 + 12) $newChar = chr($asc + 13);
if ($asc >= 97 + 13) $newChar = chr($asc - 13);
}
$newString = $newString 。 $newChar;
}
return $newString;
}
function StrRevCrypt($strDataIn) {
$newString = "";
for ($ i = strlen($strDataIn) - 1 ; $i >= 0; $i--) {
$temp = substr($strDataIn, $i, 1);
$newString = $newString 。 $temp;
}
return $newString;
}
?>