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function check_all($reg_username, $reg_email, $reg_code) {
		global $_lang,$_K;
		$res1 = $this->check_ip ();
		if($_K['do']){
			$url = 'index.php?do='.$_K['do'];
		}else{
			$url = 'index.php?do=register';
		}
		$res1 === true or $result = $res1;
		$res2 = $this->check_username ( $reg_username );
		$res2 === true or $result = $res2;
		$res3 = $this->check_email ( $reg_email );
		$res3 === true or $result = $res3;
		if ($this->_check_code == true) {
			$res4 = $this->check_code ( $reg_code );
			$res4 === true or $result = $res4;
		}
		if($result){
			return $result;
		}else{
			return true;
		}
	}

function check_ip() {
		global $_lang;
		$check_time = time () - $this->_sys_config ['reg_limit'] * 60;
		$this->_space_obj->setWhere ( "reg_ip = '$this->_reg_ip' and $check_time< reg_time" );
		$res = $this->_space_obj->query_keke_witkey_space ();

static function get_ip() {
		global $_lang;
		if (! empty ( $_SERVER ["HTTP_CLIENT_IP"] ))
			$cip = $_SERVER ["HTTP_CLIENT_IP"];
		else if (! empty ( $_SERVER ["HTTP_X_FORWARDED_FOR"] ))
			$cip = $_SERVER ["HTTP_X_FORWARDED_FOR"];
		else if (! empty ( $_SERVER ["REMOTE_ADDR"] ))
			$cip = $_SERVER ["REMOTE_ADDR"];
		else
			$cip = $_lang ['can_not_get'];
		return $cip;
	}