$bits = explode("\n",$list);

$nice = 0;

foreach($bits as $str){

if(isNice($str)){

$nice++;

}

}

echo "Nice is $nice\n";

$pairPattern = '/(..).*\1/';

$spacePattern = '/(.).\1/';

$success = preg_match($pairPattern, $str);

if(!$success){

return false;

}

$success = preg_match($spacePattern,$str);

return $success;