在本地机器上它是工作文件，但在AWS上它不是工作**本地机器上的路径= 'sitemap.xml'**在AWS服务器= '/var/www/html/sitemap.xml'

$ch = curl_init();
// Set cURL options
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
// Execute cURL request
$response = curl_exec($ch);    
if (curl_errno($ch)) {
        echo 'Error: ' . curl_error($ch);
    }
    // Close cURL session
    curl_close($ch);
    // Handle response
    if ($response) {
      $xml = simplexml_load_file('/var/www/html/sitemap.xml');
      unset($xml->url);
        $urlElement = $xml->addChild('url');
        $urlElement->addChild('priority','1.0');
        $urlElement->addChild('loc', 'base url');
        $urlElement->addChild('lastmod', date('Y-m-d'));
        $blogUrls = json_decode($response,true);
      for ($i = 0; $i < count($blogUrls['DATA'][0]); $i++) {
       // print_r($blogUrls['DATA'][0][0]['URL']) . '<br>';
        if ($blogUrls['DATA'][0] && $blogUrls['DATA'][0][$i] && $blogUrls['DATA'][0][$i]['URL']) {
          $urlElement = $xml->addChild('url');
          $urlElement->addChild('priority','0.9');
          $urlElement->addChild('loc', 'baseUrl'.$blogUrls['DATA'][0][$i]['URL']);
          $urlElement->addChild('lastmod', $blogUrls['DATA'][0][$i]['DATE']);
        }
      }
      $xml->asXML('/var/www/html/sitemap.xml');
    } else {
        // API call failed, handle the error
        // echo 'API call failed';
    }