Trouble Using eBay Shopping API with PHP (GetSingleItem Request) - php

Question

I have read over the documentation many times and tried solutions that I found on the internet and I am struggling to retrieve the data I want from the eBay Shopping API using the GetSingleItem request. I believe I have my headers and xml request set up correctly based on the examples in the documentation but I can't work out how to actually send the request and retrieve the xml response. Can someone help me on the next step please?
How do I actually send the request and retrieve the response?
My headers and xml request look like this:
// Create headers
$headers = array
(
'X-EBAY-API-APP-ID: ' . $app_id,
'X-EBAY-API-SITE-ID: ' . $site_id,
'X-EBAY-API-CALL-NAME: ' . $call_name,
'X-EBAY-API-VERSION: ' . $version,
'X-EBAY-API-REQUEST-ENCODING: ' . $encoding,
);
// Generate XML request
$xml_request = '<?xml version="1.0" encoding="utf-8"?>\n';
$xml_request .= '<GetSingleItemRequest xmlns="urn:ebay:apis:eBLBaseComponents">\n';
$xml_request .= '<ItemID>283814879195</ItemID>\n';
$xml_request .= '<IncludeSelector>Details</IncludeSelector>\n';
$xml_request .= '</GetSingleItemRequest>';
What is the next step?
If it helps, this is my complete code so far that I have tried but I get "Failed to load" when I try to use simplexml_load_string. I have removed my app_id for security also:
<?php
error_reporting(E_ALL);
ini_set('display_errors', '1');
function getItem($itemID) {
$endpoint = 'https://open.api.ebay.com/shopping';
$app_id = 'XXXXXXXXXXX';
$site_id = '3';
$call_name = 'GetSingleItem';
$version = '863';
$encoding = 'xml';
// Create headers to send with CURL request.
$headers = array
(
'X-EBAY-API-APP-ID: ' . $app_id,
'X-EBAY-API-SITE-ID: ' . $site_id,
'X-EBAY-API-CALL-NAME: ' . $call_name,
'X-EBAY-API-VERSION: ' . $version,
'X-EBAY-API-REQUEST-ENCODING: ' . $encoding,
);
// Generate XML request
$xml_request = '<?xml version="1.0" encoding="utf-8"?>\n';
$xml_request .= '<GetSingleItemRequest xmlns="urn:ebay:apis:eBLBaseComponents">\n';
$xml_request .= '<ItemID>283814879195</ItemID>\n';
$xml_request .= '<IncludeSelector>Details</IncludeSelector>\n';
$xml_request .= '</GetSingleItemRequest>';
$session = curl_init($endpoint); // create a curl session
curl_setopt($session, CURLOPT_POST, true); // POST request type
curl_setopt($session, CURLOPT_HTTPHEADER, $headers); // set headers using $headers array
curl_setopt($session, CURLOPT_POSTFIELDS, $xml_request); // set the body of the POST
curl_setopt($session, CURLOPT_RETURNTRANSFER, true); // return values as a string, not to std out
$responsexml = curl_exec($session); // send the request
curl_close($session); // close the session
return $responsexml; // returns a string
}
$itemID = '283814879195';
$resp = simplexml_load_string(getItem($itemID)) or die("Failed to load");
print($resp->Item->ItemID);
?>

Answer 1

I was having the same issue.
I'll be posting my project on my Github publicly once I am done, so here you go.
Note that ItemID is being passed into the function. You can ignore the GET in the first bit of code if you intend on hard coding the itemID.
$ItemID = $_GET['itemid'];
itemDetails($ItemID);
Then
function itemDetails($ItemID) {
$url = 'https://open.api.ebay.com/shopping';
$app_id = '[ADD YOUR APP ID]';
$site_id = '0';
$call_name = 'GetSingleItem';
$version = '863';
$encoding = 'xml';
$xml = "<?xml version=\"1.0\" encoding=\"utf-8\"?>";
$xml.= "<GetSingleItemRequest xmlns=\"urn:ebay:apis:eBLBaseComponents\">";
$xml .= "<ItemID>".$ItemID."</ItemID>";
$xml .= "</GetSingleItemRequest>";
$headers = array(
'X-EBAY-API-APP-ID:'.$app_id,
'X-EBAY-API-SITE-ID:'.$site_id,
'X-EBAY-API-CALL-NAME:'.$call_name,
'X-EBAY-API-VERSION:'.$version,
'X-EBAY-API-REQUEST-ENCODING:'.$encoding,
'Content-type:text/xml;charset=utf-8'
);
$connection = curl_init();
curl_setopt($connection, CURLOPT_URL, $url);
curl_setopt($connection, CURLOPT_HTTPHEADER, $headers);
curl_setopt($connection, CURLOPT_POST, 1);
curl_setopt($connection, CURLOPT_POSTFIELDS, $xml);
curl_setopt($connection, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec($connection);
echo $result;
curl_close($connection);
}
Hopefully, this helps!