如何使用$ imCOIE变量访问使用<img>标签读取的cookie？

I have 2 servers viz. www.example.destination.com (destination server) and www.example.source.com (source server). I have some cookies set on destination server. I want to read those on source server. So, I have put img tag on source server like this:

img src="http://www.example.destination.com/" style="display:none;"

Now, I am able to read the cookies from destination server to source server.

I opened the URL www.example.source.com in my browser. I have checked it in my Chrome Developers tool -> Application tab. It is showing all the cookies from source server as well as destination server.

But, when I use $_COOKIE variable to access the destination server cookies in my source server php file, I am not able to get it.

So, how should I use the destination server cookies, that I have read it through img tag.

Using an image source you can set cookies on your destination server, as you are basically sending a request.

However, to read it, you need access to that domain, redirect the user there, read it and pass it on another way back to your source server like a URL parameter or something.