Redirecting to payumoney in laravel using Curl

I want to redirect to payumoney gateway from my php server using curl.

I am using laravel framework and i dont want to use html/blade method to trigger payment gateway.

$posted = array();

$posted['key'] = $MERCHANT_KEY;
$posted['hash'] = $hash;
$posted['txnid'] = $txnid;
$posted['firstname'] = $firstname;
$posted['email'] = $email;
$posted['phone'] = $phone;
$posted['amount'] = $amount;
$posted['productinfo'] = $productinfo;
$posted['surl'] = $surl;
$posted['furl'] = $furl;
                
ini_set('display_errors', 1);

$c = curl_init();

$url = "https://test.payu.in/_payment";
curl_setopt_array($c, array(
    CURLOPT_URL => $url,
    CURLOPT_RETURNTRANSFER => 0,
    CURLOPT_FOLLOWLOCATION => 1,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => $posted,
));
$response = curl_exec($c);

But this code is showing below output and thus doesn't redirect to gateway fully (https://i.sstatic.net/WmDFS.png)

<?php

$url = "https://test.payu.in/_payment";
$postdata = http_build_query($posted);
$c = curl_init();

curl_setopt_array($c, array(
    CURLOPT_URL => $url,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => $postdata,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_FOLLOWLOCATION => false,
    CURLOPT_HEADER => true,
));
$response = curl_exec($c);

// Close cURL session
curl_close($c);
$redirect_url = '';
$headers = explode("\r\n", $response);
foreach ($headers as $header) {
    if (strpos($header, 'Location: ') === 0) {
        $redirect_url = trim(substr($header, strlen('Location: ')));
        break;
    }
}
if (!empty($redirect_url)) {
    header("Location: $redirect_url");
    exit;
} else {
    echo "Failed to get redirect URL";
}