title: Async curl request in PHP
body: <p>I'm executing two curl post requests in PHP. Here's how they look like:</p>
  
  <pre><code>//Onfleet API credentials 
  $username = 'xxxxx'; 
  $api_onfleet = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx';    
  $url_onfleet = "https://onfleet.com/api/v2/tasks";
  
  curl_setopt($curl, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1_2);
      $request =  $url.'api/mail.send.json';
  
      // Generate curl request
      $session = curl_init($request);
      // Tell curl to use HTTP POST
      curl_setopt ($session, CURLOPT_POST, true);
      // Tell curl that this is the body of the POST
      curl_setopt ($session, CURLOPT_POSTFIELDS, $params);
      // Tell curl not to return headers, but do return the response
      curl_setopt($session, CURLOPT_HEADER, false);
      curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
  
      // obtain response
      $response = curl_exec($session);
      curl_close($session);
  
  
       // Post the Pickup task to Onfleet
      $ch = curl_init();
      curl_setopt($ch, CURLOPT_URL, $url_onfleet);
      curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
      curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
      curl_setopt($ch, CURLOPT_USERPWD, $api_onfleet);
      curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
      curl_setopt($ch, CURLOPT_ENCODING, "");  
      curl_setopt($ch, CURLOPT_POST, true);
      curl_setopt($ch, CURLOPT_POSTFIELDS, '{"destination":{"address":{"unparsed":"'.$pickup_address.'"},"notes":"'.$comments.'"},"recipients":[{"name":"'.$name.'","phone":"+61'.$phone.'","notes":"Number of riders: '.$riders.'"}],"completeBefore":'.$timestamp.',"pickupTask":"yes","autoAssign":{"mode":"distance"}}');
  
      $result_pickup = curl_exec($ch);
      curl_close($ch);
  
      // Post the Dropoff task to Onfleet
      $curl = curl_init();
      curl_setopt($curl, CURLOPT_URL, $url_onfleet);
      curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
      curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
      curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
      curl_setopt($curl, CURLOPT_USERPWD, $api_onfleet);
      curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
      curl_setopt($curl, CURLOPT_ENCODING, "");  
      curl_setopt($curl, CURLOPT_POST, true);
      curl_setopt($curl, CURLOPT_POSTFIELDS, '{"destination":{"address":{"unparsed":"'.$dropoff_address.'"},"notes":"'.$comments.'"},"recipients":[{"name":"'.$name.'","phone":"+61'.$phone.'","notes":"Number of riders: '.$riders.'"}],"autoAssign":{"mode":"distance"}}');
  
      $result_dropoff = curl_exec($curl);
      curl_close($curl);
  </code></pre>
  
  <p>They are working, but sometimes, the second curl post request is not executed. </p>
  
  <p>I'd like to execute this two requests at the same time. </p>
  
  <p>How can I do that? Please note that they take different options in the postfields.</p>
  
  <p>Thanks for your help!</p>