curl in backgroupd by php

curlBackground.php

<?php
				$request = array("abc"=> $abcd, "adsf"=> $asdf, "duration" => $duration, "callback_url"=>$callBackUrl);
				
				// echo "<pre>"; print_r($request); die;

				$json = json_encode($request);
				$ch = curl_init(HUB_MEDIA_SERVER_TEXT2VIDEO.'phpfile.php');
				// $ch = curl_init(HUB_MEDIA_SERVER_TEXT2VIDEO.'textToVideoDev.php');
				curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
				curl_setopt($ch, CURLOPT_POSTFIELDS, $json);
				curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);

				/*extra param for not waiting for response*/
				curl_setopt($ch, CURLOPT_TIMEOUT, 1);
				// curl_setopt($ch, CURLOPT_HEADER, 0);
				//curl_setopt($ch,  CURLOPT_RETURNTRANSFER, false);
				curl_setopt($ch, CURLOPT_FORBID_REUSE, true);
				curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 1);
				// curl_setopt($ch, CURLOPT_DNS_CACHE_TIMEOUT, 10);
				curl_setopt($ch, CURLOPT_FRESH_CONNECT, true);

				curl_setopt($ch, CURLOPT_HTTPHEADER, array(
					'Content-Type: application/json',
					'Content-Length: ' . strlen($json))
				);
				// $response = curl_exec($ch);
				curl_exec($ch);
				// var_dump($response); die;
				curl_close($ch);
				// if($response === FALSE){
					// throw new Exception(curl_error($ch));
				// }
				// $data = json_decode($response, true);
?>