I need to create an application that can compare some information contained in external sites and need to do it in PHP , but I am blocked by the difference of domains. In proxys I can access this page, so I need this to happen inside the tool as well, how I can do it, I've already researched and nothing has worked for me, give me a light.
Update
I found this class that solved my life, and leave it to anyone who needs it too.
https://github.com/joshdick/miniProxy/blob/master/miniProxy.php