What is process to integrate paypal payout rest API in php - php

Question

I am working on PayPal Payout API.i am not getting what exactly process should be for a complete payout payment method.everything is working fine but still there are so many bugs. what I and mobile application developer is doing.
Mobile API calls to the server with an amount so that server side a PayPal SDK has been integrated where I make a call on PayPal and make a transaction.
The problem is that whether a payer email register or not in Paypal it returns status PENDING without any transaction id.
And I have set up an IPN listener on PayPal which makes a call whenever payout status update. but it returns transaction_id and I am not getting transaction id while payout made.
I don't know what I need to do with it. Please if you did not understand you can drop a comment.
I am using the simple code for Payouts.
$headers = array(
'Content-Type:application/json',
'Authorization:Bearer '.$accsessToken,
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://api.sandbox.paypal.com/v1/payments/payouts?sync_mode=false");
// curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 1);
curl_setopt($ch, CURLOPT_NOSIGNAL, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
$result = curl_exec($ch);
$response = json_decode($result, 1);
$payoutBatchId = $response['batch_header']['payout_batch_id'];
$headers = array(
'Content-Type:application/json',
'Authorization:Bearer '.$accsessToken,
);
unset($ch);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://api.sandbox.paypal.com/v1/payments/payouts/".$payoutBatchId);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt( $ch, CURLOPT_CUSTOMREQUEST, 'GET' );
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
$response = json_decode($result, 1);
dd($response);

Answer 1

I think you should use PHP Paypal SDK.
There is some easy examples.
Hope this help.