PHP: Match wildcard in string

gistfile1.php

function match_wildcard( $wildcard_pattern, $haystack ) {
   $regex = str_replace(
     array("\*", "\?"), // wildcard chars
     array('.*','.'),   // regexp chars
     preg_quote($wildcard_pattern)
   );

   return preg_match('/^'.$regex.'$/is', $haystack);
}

$test = "foobar and blob\netc.";
var_dump(
    match_wildcard('foo*', $test),      // TRUE
    match_wildcard('bar*', $test),      // FALSE
    match_wildcard('*bar*', $test),     // TRUE
    match_wildcard('**blob**', $test),  // TRUE
    match_wildcard('*a?d*', $test),     // TRUE
    match_wildcard('*etc**', $test)     // TRUE
);