Unable to send notification with GCM

[web-push-libs]

Unable to send notification with GCM

[Minishlink]

Hi, what is your dev environment? Platform? PHP version? Extensions installed?

Another user who had this issue used XAMP and resolved it:

Finally i got it worked.I still don't really know why. There maybe some wrong configuration in Apache config (I modified the httpd.conf a little bit and I guess it may cause the issue). 
Then, I stopped XAMP apache and start the php server by using " php -S localhost:80" and it worked. :). 

Also, this seems to be the same issue as #37 , if @lildaypay has any updates, maybe he could share with you his solution.

[Jeroeny]

Thanks for your reply. Yes I'm using xamp as well. Not sure how that user fixed it but I'll look into it a bit.

(Developing on Win10, xamp server, php 5.6.24)

[Jeroeny]

Allright I found the fix. It was an issue with SSL certificates and curl HTTPS requests. You have to download a certificate and set the path in your php.ini.

I followed this guide:
https://yikesplugins.com/support/knowledge-base/i-receive-the-error-ssl-certificate-problem-unable-to-get-local-issuer-certificate-why/

The steps are:

1. Download cacert.pem file from here: http://curl.haxx.se/docs/caextract.html
2. Save the file in your PHP installation folder. (eg: If using xampp – save it in c:\Installation_Dir\xampp\php\cacert.pem).
3. Open your php.ini file and add this line:
4. curl.cainfo=”C:\Installation_Dir\xampp\php\cacert.pem”
5. Restart your Apache server and that should fix it (Simply stop and start the services as needed).

But that didn't work at once. I had to change my cert lines in php.ini to:

curl.capath = "‪C:\xampp\php"
curl.cainfo = "C:\xampp\php\cacert.crt"

Hope this will help others. Thanks for this awesome library.

Edit: I now see the part 'How to solve "SSL certificate problem: unable to get local issuer certificate" ?' in your guide, which actually describes this. Strange I did not get that error.

[Minishlink]

Thanks for your feedback, and glad you fixed your problem!

So apparently you had no error because Buzz doesn't check for errors when you have MultiCurl :/ I'll make a PR.