Contao\Input::setPost PHP Метод

    public static function setPost($strKey, $varValue)
    {
        $strKey = static::cleanKey($strKey);
        unset(static::$arrCache['postEncoded'][$strKey]);
        unset(static::$arrCache['postDecoded'][$strKey]);
        unset(static::$arrCache['postHtmlEncoded'][$strKey]);
        unset(static::$arrCache['postHtmlDecoded'][$strKey]);
        unset(static::$arrCache['postRaw'][$strKey]);
        unset(static::$arrCache['postUnsafeRaw'][$strKey]);
        if ($varValue === null) {
            unset($_POST[$strKey]);
        } else {
            $_POST[$strKey] = $varValue;
        }
    }

 /**
  * Contao ImportUser Hook Implementation
  *
  * Imports a user from phpbb if login credentials match
  *
  * @param $username
  * @param $password
  * @param $scope
  * @return bool
  */
 public function onImportUser($username, $password, $scope)
 {
     if ($scope == 'tl_member') {
         // Before we try to import a user, we must check is username is maybe = username_clean
         // We already now that the user could not be found by username column
         if (($real_username = $this->findByCleanUsername($username)) != '') {
             // So we found the user by it's clean username, then we overwrite the POST Value
             // because contao will recheck it.
             Input::setPost('username', $real_username);
             return true;
         }
         $loginResult = System::getContainer()->get('phpbb_bridge.connector')->validateLogin($username, $password);
         // Only import user if login to forum succeeded
         if ($loginResult === true) {
             System::log("Trying to import User: " . $username, __METHOD__, TL_ACCESS);
             // Try to import the user to contao (tl_member / frontend)
             $importResult = System::getContainer()->get('phpbb_bridge.connector')->importUser($username, $password);
             return $importResult;
             // Should usually be true
         }
     }
     return false;
 }