PHP - getting a site's favicon and converting it to png if necessary

Question

For any given site \"example.domain.tld\" or merely \"domain.tld\" I need to do the following in PHP:

• If the site has a favicon, get it wherever it is

Answer 1

If the favicon isn't located at /favicon.ico I guess you have to parse the HTML.

For the filetype detection, you can use this extension, which detects the filetype by using magic bytes.

You can convert to PNG by using the GD library, an example can be found here.