Getting a value from the JSON String

Question

Please help me out with the code

1. I am getting the below result after I run my script which is working perfectly but I want to know how can I extract the value true which comes after the {"success":"

{"success":"true","type":"API","totalprice":"1","totalgsm":"1","remaincredit":"491 SMS","results":[{"status":"OK","messageid":"263db4bc-321f-5d2e-8d3a-454bf0d2bda2","gsm":"923100000003"}]}

2. Here in my php code I want to have it checked if the value is returned as true it should run the first if statment and if the value is returned as false it should run the else statement.

   $ch = curl_init();
   curl_setopt($ch, CURLOPT_URL, $cpurl);
   curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
   curl_setopt($ch, CURLOPT_HEADER, 0);
   $result = curl_exec ($ch);
   
   if (preg_match("/successfully/", $result ))
   {
   $alert = '<div class="alert alert-success">
                                       <button type="button" class="close" 
   data-dismiss="alert" aria-hidden="true">&times;</button>
                                       <strong>Messages successfuly sent to 
   '.$cnt.' Students.</strong>
                                   </div>';
                                   $status = 'Success';
   
   }else{
     $alert = '<div class="alert alert-danger">
                                       <button type="button" class="close" 
   data-dismiss="alert" aria-hidden="true">&times;</button>
                                       <strong>Message Sending Failed.</strong>
                                   </div>'; 
                                   $status = 'Failed';
   }
   

Answer 1

You can use JsonMapper for solving the task. Just a define an object (view model) that will be the php representation of your json.

Answer 2

Why not use json_decode?

....
$result = curl_exec ($ch);
$response = json_decode($result);

Now you can access the value as $response->success:

if ($response->success === "true") { 
    $alert = ' × Messages successfuly sent to '.$cnt.' Students. '; 
    $status = 'Success';
} else { 
    $alert = ' × Message Sending Failed. '; $status = 'Failed'; 
}