// 編碼
function encrypt($str, $key){
$str = mcrypt_encrypt(MCRYPT_RIJNDAEL_128,$key,$str,MCRYPT_MODE_ECB);
$str = base64_encode($str);
return $str;
}
// 解碼
function decrypt($str, $key){
$str = base64_decode($str);
$str = mcrypt_decrypt(MCRYPT_RIJNDAEL_128,$key,$str,MCRYPT_MODE_ECB);
return $str;
}
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