php async code laravel

gistfile1.txt

This waits for the CURL request to push to firebase but no one is waiting for it.
####application/controllers/firebase.php

  <?php

	class Firebase_Controller extends Base_Controller
	{
		public function post_index()
		{
			try {
				$s = extend(array(
					'url' => '',
					'data' => array(),
				), sr());

				$fb = new firebase(Config::get('firebase.url'), Config::get('firebase.token'));
				Log::fb($fb->push($s['url'], $s['data']));

				return true;
			} catch(Exception $e) {
				return $e->getMessage();
			}
		}
	}

// this makes a curl request to a url with the data
// Note the " > /dev/null 2>&1 &" this tells the shell_exec to not wait for no one so it returns immediately.
####laravel/request.php

	/**
	 * Make a CURL request.
	 *
	 * @return HttpFoundation\Request
	 */
	public static function curl($url, $payload, $type = "POST") {
		$cmd = "curl -X {$type} -H 'Content-Type: application/json'";
		$cmd.= "-v -d '" . json_encode($payload) . "' " . "'" . $url . "'";
		$cmd .= " > /dev/null 2>&1 &";

		return shell_exec($cmd);
	}

// someone fills out a form and this makes the async request.
####application/controllers/comment.php

	<?php

	class Api_V1_Comment_Controller extends Base_Controller
	{
		public function post_index()
		{
			try {
				$data = array(
					'url' => "/products/{$conversation->serie_id}/comments",
					'data' => eloquent_to_json($comment),
				);
				
				Request::curl('http://local.dev/firebase', $data);
			} catch(Exception $e) {
				return $e->getMessage();
			}
		}
	}


Refer to step 3: https://segment.io/blog/how-to-make-async-requests-in-php/