에러 관련 질문 채택완료

</p><p><?php</p><p>class NaverProxy {</p><p>      public function queryNaver($query, $target) {</p><p> </p><p>  $client_id = "ㅁㅁㅁ";</p><p>  $client_secret = "ㅂㅂㅂ";</p><p> </p><p>  $query=urlencode("얍얍");</p><p>  $target="blog";</p><p>  $url = "<a href="<a href="https://openapi.naver.com/v1/search/blog.xml" target="_blank" rel="noopener noreferrer">https://openapi.naver.com/v1/search/blog.xml</a>"><a href="https://openapi.naver.com/v1/search/blog.xml" target="_blank" rel="noopener noreferrer">https://openapi.naver.com/v1/search/blog.xml</a></a>";</p><p>  $url = sprintf("%s?query=%s&display=100&start=1&sort=sim&target=blog",  $url, $query);</p><p>  $is_post = true;</p><p>  </p><p>  $ch = curl_init();</p><p>  curl_setopt($ch, CURLOPT_URL, $url);</p><p>//  curl_setopt($ch, CURLOPT_GET, $is_post);</p><p>  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);</p><p>  </p><p>  $headers = array();</p><p>  $headers[] = "X-Naver-Client-Id: ".$client_id;</p><p>  $headers[] = "X-Naver-Client-Secret: ".$client_secret;</p><p>  </p><p>  curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);</p><p>  </p><p>  $data = curl_exec ($ch);</p><p>  curl_close ($ch);</p><p>  </p><p>  return $data;</p><p>      }</p><p> }</p><p> </p><p>$naverproxy = new NaverProxy();</p><p> // XML파일에서 원하는 항목만 추출하기</p><p>//echo $naverproxy -> queryNaver($_POST['query'], $_POST['target']);</p><p>$xmlstring = $naverproxy -> queryNaver($_POST['query'], $_POST['target']);</p><p> </p><p>$xml = simplexml_load_string($xmlstring) or die("에러: 객체를 생성할 수 없습니다");</p><p>$items = $xml->channel->item;</p><p>if(!empty($items)){</p><p>foreach($items as $item){</p><p>    echo '<a href="' . $item->link . '">' . $item->title . '</a>
';</p><p>}</p><p>}</p><p> </p><p>?></p><p><span style="font-size: 14.6667px;">