To scrap the data from website, Website must be public and open for scrapable.
In the blow code, Just update the CURLOPT_URL to which websites data you want to scrap.
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "site url");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
$output = curl_exec($ch);