eBay Sandbox API | Guest Place order | Error: empty reply from server - ebay-api

Question

I am using eBay Sandbox API to place the order, I have generated the session id and pass to this url https://api.sandbox.ebay.com/buy/order/v1/guest_checkout_session/{session_id}/place_order
My php curl is
$header = array('Accept: application/json',
'Authorization: Bearer '.$authToken,
'Content-Type: application/json',
'X-EBAY-C-ENDUSERCTX:affiliateCampaignId=<ePNCampaignId>,affiliateReferenceId=<referenceId>'
);
$placeOrderUrl = "https://api.sandbox.ebay.com/buy/order/v1/guest_checkout_session/{checkoutSessionId}/place_order";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, trim($placeOrderUrl));
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLINFO_HEADER_OUT, true);
$response = curl_exec($ch);
$information = curl_getinfo($ch);
print_r($information);
echo '<br/>';
echo 'Error Code '.curl_errno($ch).'<br/>';
if(curl_errno($ch)){
echo "ERROR:".curl_error($ch);
}
curl_close($ch);
echo '<br/>';
print_r(json_decode($response,true));
but i am getting the error
Error Code 52
ERROR:Empty reply from server
and here is the output array
Array(
[url] => https://api.sandbox.ebay.com/buy/order/v1/guest_checkout_session/v1|5000704767|133511112/place_order
[content_type] =>
[http_code] => 100
[header_size] => 25
[request_size] => 2146
[filetime] => -1
[ssl_verify_result] => 0
[redirect_count] => 0
[total_time] => 0.314586
[namelookup_time] => 2.3E-5
[connect_time] => 0.073967
[pretransfer_time] => 0.236347
[size_upload] => 0
[size_download] => 0
[speed_download] => 0
[speed_upload] => 0
[download_content_length] => -1
[upload_content_length] => -1
[starttransfer_time] => 0.314579
[redirect_time] => 0
[redirect_url] =>
[primary_ip] => 66.135.212.84
[certinfo] => Array ()
[primary_port] => 443
[local_ip] => 198.71.236.80
[local_port] => 37903
[request_header] => POST /buy/order/v1/guest_checkout_session/v1|5000704767|133511112/place_order HTTP/1.Host: api.sandbox.ebay.comAccept: application/json
Authorization: Bearer {token}
Content-Type: application/json
X-EBAY-C-ENDUSERCTX:affiliateCampaignId=,affiliateReferenceId=
Expect: 100-continue)

Answer 1

You have to urlencode the sessionId: v1|5000704767|133511112 should be v1%7C5000704767%7C133511112