function decryptUserInfo($encryptUserInfo)
{
$outputArray = array();
// 分别去除首尾两个字符
$innerUserInfo = substr($encryptUserInfo, 2, strlen($encryptUserInfo) - 4);
// 用户id部分
$zPos = strpos($innerUserInfo, 'z');
$encryptUserId = substr($innerUserInfo, 0, $zPos);
$user_id = decryptAlphabetToNum($encryptUserId);
// 手机号部分
$zPos2 = strpos($innerUserInfo, 'z', $zPos + 1);
$mobilePart = substr($innerUserInfo, $zPos + 1, $zPos2 - $zPos - 1);
$encryptMobile = '';
for ($i = 1; $i < strlen($mobilePart); $i = $i + 2) {
$encryptMobile .= $mobilePart[$i];
}
$mobile = decryptAlphabetToNum($encryptMobile);
// 时间部分
$timePart = substr($innerUserInfo, $zPos2 + 1);
$encryptTime = '';
for ($i = 1; $i < strlen($timePart); $i = $i + 2) {
$encryptTime .= $timePart[$i];
}
$time = decryptAlphabetToNum($encryptTime);
$outputArray['user_id'] = $user_id;
$outputArray['mobile'] = $mobile;
$outputArray['time'] = $time;
return $outputArray;
}
function decryptToken($token)
{
$idStr = decryptAlphabetToNum(substr($token, 10, strlen($token) - 20));
if (encryptId($idStr) == $token) {
return $idStr;
} else {
return false;
}
}
private function parseExamId($token)
{
$examId = decryptAlphabetToNum(substr($token, 10, strlen($token) - 20));
return $examId;
}
