title: PHP code returns bool(false)
body: <p>I have the following PHP code :</p>
  
  <pre><code>&lt;?php
  
  $ch = curl_init();
  
  $url = "http://api/url/mac_address";
  
  curl_setopt($ch, CURLOPT_URL,$url);
  
  curl_setopt($ch, CURLOPT_POST, true);
  
  curl_setopt($ch, CURLOPT_POSTFIELDS, "msg=TEST");
  
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  
  $output = curl_exec ($ch);
  
  curl_close ($ch);
  
  var_dump($output);
  
  ?&gt;
  </code></pre>
  
  <p>It is working properly on one server, but when I run it on other server, it returns bool(false).</p>