Question

I would like to check in PHP, if a string contains an URL to a specific domain and save it in a new string.

example: “Check out my latest video here http://www.youtube.com/?123“

So now the new string should have the value “http://www.youtube.com/?123”.

If there is another link in the example, but not from youtube, the string should still only contain the youtube value.

Answer 1

Your specific domain in the following example is “youtube.com”

$sText =  "Check out my latest video here http://www.youtube.com/?123";
preg_match_all('@https?://(www\.)?youtube.com/.[^\s.,"\']+@i', $sText, $aMatches);
var_dump($aMatches);