ERROR = Warning: Domdocument::loadHTML(): Empty string supplied as input

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Good morning, I’m making the following mistake:

Warning: Domdocument::loadHTML(): Empty string supplied as input.

This error occurs on my free server, the strange thing is that locally everything works normal.

Does anyone know why?

   <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
   <html xmlns="http://www.w3.org/1999/xhtml">
   <head>
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
   <link  href="css/estilo.css" rel="stylesheet" type="text/css"/>
   <script type="" src=""></script>
   <script type="" src=""></script>
   <link rel="" type="" href="">
   <body>

   <h2></h2>

   <?php

   $url = "https://www.agrolink.com.br/cotacoes/graos/";


   $chll = curl_init();
   curl_setopt($chll, CURLOPT_URL, $url);
   curl_setopt($chll, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
   curl_setopt($chll, CURLOPT_SSL_VERIFYPEER, false);
   curl_setopt($chll, CURLOPT_RETURNTRANSFER, 1);
   curl_setopt($chll, CURLOPT_CONNECTTIMEOUT, 120);
   curl_setopt($chll, CURLOPT_TIMEOUT, 120);
   curl_setopt($chll, CURLOPT_POST,false);
   //curl_setopt($chll, CURLOPT_POSTFIELDS, $postfields);
   curl_setopt($chll, CURLOPT_FOLLOWLOCATION, true);
   curl_setopt($chll, CURLOPT_VERBOSE, 1);
    curl_setopt($chll, CURLOPT_ENCODING, "");
    $err = curl_error($chll);
    $mensagem = curl_exec($chll); 
     curl_close ($chll);

     //echo $mensagem;


     libxml_use_internal_errors(true) and libxml_clear_errors();
      $html = new DOMDocument();
      $html->loadHTML($mensagem);





        $arra =  array();
       foreach($html->getElementsByTagName('td') as $span){ 

       $x0 = $span->nodeValue.'</br>';
       echo $x0.'</br>'.'</br>';


       };

       ?>
php php-domdocument

1 answer

1


Probably Curl is disabled on this free server and the method $html->loadHTML($mensagem); is receiving null

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