Include other website PHP
To include a webpage link from another website into a website,
This code requires allow_url_include=On in your php.ini. This is disabled by default because its as MASSIVE SECURITY RISK, this is called Remote File Include (RFI) vulnerability.
This is technically an XSS vulnerability. So if you trust the website then there isn't a problem.
$ch = curl_init("http://tufing.com");
CURL is a way you can hit a URL from your code to get a html response from it.cURL means client URL which allows you to connect with other URLS and use there responses in your code.