$ch = curl_init();
	curl_setopt($ch, CURLOPT_URL,"https://developer.api.walmart.com/api-proxy/service/affil/search?query=" . urlencode('Samsung Galaxy S10'));
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

	$customer_id = '3dfb07e2-2664-4b6a-83d1-0998cc1eddab';
	$timestamp = round(microtime(true) * 1000);
	$api_version = 1;

	$headers = [
	    "WM_CONSUMER.ID:$customer_id",
	    "WM_CONSUMER.INTIMESTAMP:$timestamp",
	    "WM_SEC.KEY_VERSION:$api_version",
	    'WM_QOS.CORRELATION_ID:-18006880586',
	    'WM_IFX.CLIENT_TYPE:INTERNAL',
	    'WM_PREVIEW:false',
	    'WM_SHOW_REASON_CODES:ALL',
	    'Content-Type:application/json'
	];


$private_key = <<<EOD
-----BEGIN RSA PRIVATE KEY-----
MIIEoQIBAAKCAQEApqmKihNxaN+U8V1esweS6f2GgVpSLuzGEXhkAyXJDatguuVY
UIBBwdjuS6kSyLpajKzMtVg92py4BgpeMIbBOmXD8tXeDnbq4leilcpClMu7Xm9j
4SXdSqdpg/hcjKQDNCjU2r4WqyzcYR9j9Nf5xRB2mhNBMA7PAPlm6J1hjhpdeSLm
1QT8KvkUhooTN4d0X9Lko3i5rR5L5C28clDLmVsaLV6af6quplfKG0gq9ssx4vg/
ycN1DdFV0lTMOgfydRfAibSntvaC3/JLWKyl0JoYP/TndJcyqt6O24HqrFLOh7nQ...
-----END RSA PRIVATE KEY-----
EOD;

$public_key = <<<EOD
-----BEGIN PUBLIC KEY-----
AAAAB3NzaC1yc2EAAAABJQAAAQEApqmKihNxaN+U8V1esweS6f2GgVpSLuzGEXhk
AyXJDatguuVYUIBBwdjuS6kSyLpajKzMtVg92py4BgpeMIbBOmXD8tXeDnbq4lei
lcpClMu7Xm9j4SXdSqdpg/hcjKQDNCjU2r4WqyzcYR9j9Nf5xRB2mhNBMA7PAPlm
6J1hjhpdeSLm1QT8KvkUhooTN4d0X9Lko3i5rR5L5C28clDLmVsaLV6af6quplfK
G0gq9ssx4vg/ycN1DdFV0lTMOgfydRfAibSntvaC3/JLWKyl0JoYP/TndJcyqt6O
24HqrFLOh7nQBD542m5AJgZb8A5BSn2f3MwxDnaBq2xbnnFa6Q==
-----END PUBLIC KEY-----
EOD;


$data = $customer_id . "\n" . $timestamp . "\n" . $api_version . "\n";

$binary_signature = "";
openssl_sign($data, $binary_signature, $private_key, OPENSSL_ALGO_SHA1);
$headers[] = 'WM_SEC.AUTH_SIGNATURE:' . base64_encode($binary_signature);

curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$server_output = curl_exec ($ch);
curl_close ($ch);
die(var_dump($server_output));