<?php
  // using cURL POST
  $key="YOUR-ACCOUNT-KEY";
  $ref_id="REFERENCE-ID";
  $response = httpPost("https://api.textng.xyz/carrier_transaction_status/",array("key"=>"$key","ref_id"=>"$ref_id"));
  // using php curl
  function httpPost($url, $data) {
    $curl = curl_init($url);
    curl_setopt($curl, CURLOPT_POST, true);
    curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($data));
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($curl);
    curl_close($curl);
    echo $response;
  }
?>

{
    "D": {
        "details":[{
            "status":"QUERY STATUS",
            "ref_id":"XXXXXXXXXXXXXXX",
            "query":"*XXX#",
            "query_response":"THE RESPONSE FROM THE NETWORK",
            "type":"XXXX",
            "bypasscode":"23490XXXXXXXXX",
            "amount_paid":"0" 
        }]
    }
}

{
    "D":{
        "details":[
            {
            "status":"error-key-invalid"
            }
        ]
    }
}