cURL inventory update to Shopify API not working - php

Question

Please review my cURL test code and let me know if you see any reason why executing it does not update the inventory of my product Variant. There is only one Product that has it's Variant data, there are not separate Variants of the Product. So it should be pretty straight-forward, right?
cURL is installed and is working fine on my box, and the API key / token are also verified.
Here is my code
//Set up access
$apiKey = "[my api key]";
$pwd = "[my pwd]";
$baseUrl = $apiKey . $pwd ."#sensible-herbs.myshopify.com/admin/";
//Set up test data
$variantId = '3744859331';
$inventoryQty = '50';
//Set up JSON payload
$payload = array (
"variant" => array("id" => $variantId,
" nventory_quantity" => $inventoryQty
)
);
$payload = json_encode($payload, JSON_NUMERIC_CHECK);
echo 'JSON payload: ' .$payload ."<p>";
$putUrl = $baseUrl ."variants/" ."$variantId".".json";
echo 'url: ' .$putUrl ."<hr>";
$session = curl_init();
curl_setopt($session, CURLOPT_URL, $putUrl);
curl_setopt($session, CURLOPT_CONNECTTIMEOUT, 30); //seconds to allow for connection
curl_setopt($session, CURLOPT_TIMEOUT, 30); //seconds to allow for cURL commands
curl_setopt($session, CURLOPT_HEADER, true); //include header info in return value ?
curl_setopt($session, CURLOPT_RETURNTRANSFER, true); //return response as a string
curl_setopt($session, CURLOPT_PUT, 1);
curl_setopt($session, CURLOPT_POSTFIELDS, $payload);
curl_setopt($session, CURLOPT_HTTPHEADER, array('Accept: application/json', 'Content-Type: application/json'));
$data = curl_exec($session);
print_r(curl_getinfo($session));
curl_close($session);
echo $data; // session data
The response I am getting is:
Array ( [url] => https://[apikey+password]#sensible-herbs.myshopify.com/admin/variants/3744859331.json [content_type] => [http_code] => 0 [header_size] => 0 [request_size] => 0 [filetime] => -1 [ssl_verify_result] => 0 [redirect_count] => 0 [total_time] => 0.156 [namelookup_time] => 0.078 [connect_time] => 0.156 [pretransfer_time] => 0 [size_upload] => 0 [size_download] => 0 [speed_download] => 0 [speed_upload] => 0 [download_content_length] => -1 [upload_content_length] => -1 [starttransfer_time] => 0 [redirect_time] => 0 [certinfo] => Array ( ) [primary_ip] => 23.227.38.71 [primary_port] => 443 [local_ip] => 192.168.0.10 [local_port] => 50573 [redirect_url] => )
So it looks like it's connecting but either the payload is not getting PUT...or I just don't understand what the API / URL requirements are for this... or maybe there is some hidden or missing switch or permission I need to set up other than the APIKey generation... I wish I knew!
Thanks in advance and namaste!
Kailas

Answer 1

It looks like you have a spell mistake in your payload array, inventory_quantity not nventory_quantity
$payload = array (
"variant" => array(
"id" => $variantId,
"inventory_quantity" => $inventoryQty
)
);