How to cut using regular expression: ./files?

Question

Regular Expressions

Help please)
Need to cut

./files
<link rel="icon" href='./files/3102-e62.arb.png' type="image/png">

and replace it with your own value:
$str = '/folder/test';

Answer 1

like this?
Or would you still like that option? )

$text = preg_replace('#\./files#is', '/folder/test', $text);