PHP input::getIp示例

 function login($username, $password)
 {
     $user = $this->user;
     if ($username && $password) {
         $user->selectByName($username);
         if ($user->check($password)) {
             if ($user->getIsLock() != 1) {
                 exit(new sfException(lang::get("You has been lock!")));
             }
             $user->setLoginNum();
             $user->setLastloginAt(date("Y-m-d H:i:s"));
             $user->setUserIp(input::getIp());
             $user->save();
             $_SESSION['userid'] = $user->getId();
             $_SESSION['username'] = $user->getUserName();
             $_SESSION['userlevel'] = $user->getUserGroupId();
             return true;
         }
     }
     return false;
 }