GCM Implementation using PHP always facing Unauthorized Error 401

Question

I am always getting 401 error.Please any one could let me know exactly what should be HTTP referrers if i am using my local server. i.e Currently I am using:

Answer 1

I can see several errors:

1. Contenttype:application/json should be Content-Type: application/json.
2. You forgot to include the registration ids in the JSON.
3. I'm not sure if CURLOPT_SSL_VERIFYPEER => false and CURLOPT_SSL_VERIFYHOST => false are required.

You can find many PHP GCM samples that work (for example - here).