Phonepay integration using php

PhonePe Payment Gateway Example! Today In this post we will integrate the Phonepe payment gateway into out php application. This tutorial is also useful for the php framework like laravel and many more php frameworks.

index.php

<?php

$jayParsedAry = [
    "merchantId" => 'MERCHANTUAT', // <THIS IS TESTING MERCHANT ID>
    "merchantTransactionId" => rand(111111,999999),
    "merchantUserId" => 'MUID' . time(),
    "amount" => (1 * 100),
    "redirectUrl" =>  'response.php',
    "redirectMode" => "POST" // GET, POST DEFINE REDIRECT RESPONSE METHOD,
    "redirectUrl" =>  'response.php',
    "mobileNumber" => "<YOUT MOBILE NUMBER>",
    "paymentInstrument" => [
        "type" => "PAY_PAGE"
    ]
];

$encode = json_encode($jayParsedAry);
$encoded = base64_encode($encode);
$key = '099eb0cd-02cf-4e2a-8aca-3e6c6aff0399'; // KEY
$key_index = 1; // KEY_INDEX
$string = $encoded . "/pg/v1/pay".$key;
$sha256 = hash("sha256", $string);
$final_x_header = $sha256 . '###'.$key_index;

// $url = "https://api.phonepe.com/apis/hermes/pg/v1/pay"; <PRODUCTION URL>

$url = "https://api-preprod.phonepe.com/apis/pg-sandbox/pg/v1/pay"; // <TESTING URL>

$headers = array(
    "Content-Type: application/json",
    "accept: application/json",
    "X-VERIFY: " . $final_x_header,
);

$data = json_encode(['request' => $encoded]);

$curl = curl_init($url);

curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);

$resp = curl_exec($curl);

curl_close($curl);

$response = json_decode($resp);

header('Location:' . $response->data->instrumentResponse->redirectInfo->url);

response.php

<?php

$key = '099eb0cd-02cf-4e2a-8aca-3e6c6aff0399'; // KEY
$key_index = 1; // KEY_INDEX

$response = $_POST; // FETCH DATA FROM DEFINE METHOD, IN THIS EXAMPLE I AM DEFINING POST WHILE I AM SENDING REQUEST

$final_x_header = hash("sha256", "/pg/v1/status/" . $response['merchantId'] . "/" . $response['transactionId'] . $key_index) . "###" . $key;

$url = "https://api-preprod.phonepe.com/apis/pg-sandbox/pg/v1/status/".$response['merchantId']."/".$response['transactionId']; // <TESTING URL>

$headers = array(
    "Content-Type: application/json",
    "accept: application/json",
    "X-VERIFY: " . $final_x_header,
    "X-MERCHANT-ID:". $response['merchantId']
);

$curl = curl_init($url);

curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'GET');
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);

$resp = curl_exec($curl);

curl_close($curl);

$responsePayment = json_decode($resp, true);
// HANDLE YOUR PHONEPAY RESPONSE