function coordinate(q) {
  $.ajax({
   url : "product_map_search.php?query="+encodeURIComponent(q),
   type : "GET",
   dataType : "json",
   content :"application/json",
   
   success:function(result) {
    console.log(result);
    // $.each(result["result"]["items"],function(index, item){});
    var target = result["result"]["items"][0]["point"];
    $("#px").val(target["x"]);
    $("#py").val(target["y"]);
   },
   error: function(xhr, status, error) {
   alert('좌표를 불러올 수 없습니다. - '+status);
   } 
  });
  // window.open("product_map_search.php?query="+encodeURIComponent(q));
 }

$client_id = "값(등록된 아이디맞음)";
$client_secret = "값(등록된 값맞음)";
$url = "https://openapi.naver.com/v1/map/geocode?query=".urlencode(KOR($_GET["query"]))."&coord=tm128";
$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);
 
 $headers = array();
 $headers[] = "X-Naver-Client-Id : ".$client_id;
 $headers[] = "X-Naver-Client-Secret : ".$client_secret;
 curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
 $response = curl_exec ($ch);
 curl_close ($ch);
 echo $response;
 
 
function KOR($text) {
 return iconv("UTF-8", "euc-kr", $text);
}