Immortal_pony

if ($result) {
    if ($result == "right") {
        $color = "green";
    } else {
        $color = "red";
    }
    $probablyColorize = " style='color:{$color}'";
} else {
    $probablyColorize = null;
}

echo "<b{$probablyColorize}>";

$colorAttr = null;
if ($result == "right") {
    $colorAttr = " style='color:green'";
} elseif ($result) {
    $colorAttr = " style='color:red'";
}

echo "<b{$colorAttr}>";

$link = "mastertest.ru/about/pupu/?lang=ru";
$splittedLink = explode("/", $link);
$userName =  $splittedLink[2];
var_dump($userName);

Но удобство в том, что мы по сути один и тот же массив передаем в разные функции, и они берут то, что им надо

function crossConcat(array $someArray, array $otherArray) {
    $concatenated = [];
    foreach ($someArray as $someArrayElement) { 
        foreach ($otherArray as $otherArrayElement) {
            $concatenated[] = $someArrayElement . $otherArrayElement;
        }
    }
    return $concatenated;
}


$sites = ["site.com/file.php", "site2.net/file.php", "site3.irg/file.php"];
$paramStrings = ["?123", "?abc", "?777"];
var_dump(crossConcat($sites, $paramStrings));
/*
array(9) {
  [0]=>
  string(21) "site.com/file.php?123"
  [1]=>
  string(21) "site.com/file.php?abc"
  [2]=>
  string(21) "site.com/file.php?777"
  [3]=>
  string(22) "site2.net/file.php?123"
  [4]=>
  string(22) "site2.net/file.php?abc"
  [5]=>
  string(22) "site2.net/file.php?777"
  [6]=>
  string(22) "site3.irg/file.php?123"
  [7]=>
  string(22) "site3.irg/file.php?abc"
  [8]=>
  string(22) "site3.irg/file.php?777"
}
*/

INSERT INTO `users` VALUES
    (NULL, 'gfhjkl'),
    (NULL, 'dfghjkl')
;