while문 내 for문 문의

	public function Start(){
		$host = "http://newsky2.kma.go.kr/service/VilageFrcstDspthDocInfoService/WidOverlandForecast?";
 
		$sql = "SELECT		region_code
					FROM		T_REGION
					WHERE		seperate is NOT NULL";
		$this->db->que = $sql;
		$this->db->query();
 
		while($rows = $this->db->getRow()){
			$region_code = "&regId=" . $rows['region_code'];
 
			$this->decho("region_code = " . $rows['region_code']);
 
			$url = $host . $service_key . $region_code;
			$url_data = file_get_contents($url);
			$xml = simplexml_load_string($url_data, 'SimpleXMLElement', LIBXML_NOCDATA);					//날씨 방식
 
			$k = 0;
			$api_ar = array();
			foreach($xml->body->items->item as $value){
				$api_ar[$k] = $value;
				$k++;
			}
 
			$result_ar = array();
 
			$result = json_encode($api_ar);
			$result_ar = $result;
 
			for($i = 0; $i < count($api_ar); $i++){
				//중복체크
				if($i ==0){
					$chk = $this->dataCheck($api_ar[$i]->regId);
				}
				$this->decho("regId = " . $api_ar[$i]->regId . " / " . "reg_dt = " . $api_ar[$i]->announceTime . " / chk = " . $chk . " / dataCheck = " . $this->dataCheck($api_ar[$i]->regId));
 
				$d['reg_dt'] = $api_ar[$i]->announceTime;	// 발표시간
				$d['numEf'] = $api_ar[$i]->numEf;				// 발표번호
				$d['regId'] = $api_ar[$i]->regId;					// 지역코드
				$d['rain_per'] = $api_ar[$i]->rnSt;				// 강수 확률
				$d['rain_type'] = $api_ar[$i]->rnYn;				// 강수 타입
				$d['temperature'] = $api_ar[$i]->ta;				// 온도
				$d['wind_direction'] = $api_ar[$i]->wd1;		// 풍향
				$d['wind_direction2'] = $api_ar[$i]->wd2;	// 풍향2
				$d['wind_power'] = $api_ar[$i]->wsIt;			// 바람 세기
				$d['weather'] = $api_ar[$i]->wf;					// 날씨
				$d['sky'] = $api_ar[$i]->wfCd;						// 하늘상태
		        }
			$this->decho("while end");
		}
		$this->decho("Weather insert process end.");
	}

while($rows = $this->db->getRow()){
	$region_code = "&regId=" . $rows['region_code'];
 
	$this->decho("region_code = " . $region_code);
 
	$url = $host . $service_key . $region_code;
	$url_data = file_get_contents($url);
	$xml = simplexml_load_string($url_data, 'SimpleXMLElement', LIBXML_NOCDATA);					//날씨 방식
 
	$k = 0;
	$api_ar = array();
	foreach($xml->body->items->item as $value){
		$api_ar[$k] = $value;
		$k++;
	}
}