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Comparing two strings, one string has a wildcard

I have two lines that I would like to compare.

string1 = www.domain.com

string2 = *.domain.com

Usually, if we use if ($string1 == $string2)..

, they shouldn't be the same as they are not equal, since string2 is a wildcard, I'd like it to be a match.

Condition (s)

  • *.domain.com

    must match ***anything**.domain.com*

  • *.domain.com

    must be a mismatch for *domain.com*

    or*something.adifferent.com*

  • need a solution to support all ie TLDs .com, .net, .org. .com.au

    etc.

How can I achieve this?

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1 answer


I'm not sure about the 2 points you are talking about in your question, but I think you need to do this: -

<?php


$string1 = '*.domain.com';

$string2 = 'www.domains.com';

$pattern = 'domain'; // put any pattern that you want to macth in both the string.

    if(preg_match("~\b$pattern\b~",$string1) && preg_match("~\b$pattern\b~",$string2) && substr_count($string1,'.') == substr_count($string2,'.')){
        echo 'matched';
    }else{
        echo 'not matched';
    }

?>

Output: - http://prntscr.com/7alzr0

and if string2

converted to www.domain.com

, then



http://prntscr.com/7am03m

Note: 1. If you want the following to match, also go to the preset condition.

example:--
$string1 = '*.domain.com'; 
$string2 = 'abc.login.domain.com'; 

if(preg_match("~\b$pattern\b~",$string1) && preg_match("~\b$pattern\b~",$string2) && substr_count($string1,'.') <= substr_count($string2,'.')){
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