Please explain what this is doing?

PHPNEWTOIT

I am a new to PHP and would like to understand what the following is doing?

and also how and what function can I use to stop get the images from the file_get_contents not to look on my server for them but replace this with the correct path.

$html = file_get_contents($uri);
$html = preg_replace('/<head>/i', "<head>\n<base href='$uri'>\n", $html);

Many Thanks

PHPNEWTOIT

NogDog

It's grabbing the output of $uri (which is presumably the URI to a web page) and attempting to insert a HTML <base> element into the <head> section of the retrieved HTML text string.

Weedpacket

It might be easier to just get the images and put them into a new page. Surely there's a better method to achieve what your objective (whatever that is) than trying to rewrite a pre-existing HTML page.