Lander

function clearBySixFirstLetter($array) 
{
    $has = [];
    
    return array_filter(
        $array,
        function ($word) use (&$has) {
            $sixLetters = mb_substr($word, 0, 6);
            
            if (!in_array($sixLetters, $has)) {
                array_push($has, $sixLetters);
                return true;
            }
            
            return false;
        }
    );
}

clearBySixFirstLetter([
    'панель',
    'пенал',
    'перелив',
    'подвесная',
    'подвесного',
    'подвесное',
    'подвесной',   
]);

/*
Array
(
    [0] => панель
    [1] => пенал
    [2] => перелив
    [3] => подвесная
)
*/

echo date('d.m.Y', strtotime("first tuesday of this month"));

echo (new \DateTime("first tuesday of this month"))->format('Y-m-d');

$httpQuery = http_build_query([
  'keyword' => $_GET['utm_term'],
  'position' => $_GET['utm_campaign'],
  'creative' => $_GET['utm_creative']
]);

echo '<a href="http://site.com/?camp=' . $httpQuery . '">Тык</a>';

$nextDay = strtotime(date('Y-d-m', strtotime('+1 day', $startTime)));

foreach ([122335, 3242342, 675463345] as $id) {
    $ts=time();
    $d1=curl('https://SITE.RU/co.php?type=5&uid='.$id.'&session_key=-s-3XsnPgxyRxo-vbqwz.ooq8qzV1sjrcPxWXqJp8NxR.lJvCqNz0rLQ9NOU3-LNAoP0znjRfRN0aKquexUY4NoodS9&auth_sig=f124749c341a1cc6c9821a08c32e5653&ts='.$ts.'&client_type=2&logged_user_id=578769939391');
    $d2=curl('https://SITE.RU/co.php?type=5&uid='.$id.'&session_key=-s-20tjxauOOanoNeoQW0Mj-fu-z4qqoaqz00sHwCuMV.LltcxRQ2uLoasOX2pLrCrx24rlNAqMS6nkudNOVYMjq9xwVashqbvOS.oIqaub&auth_sig=bdf20708a513ee3b77ecd1db011fa56a&ts='.$ts.'&client_type=2&logged_user_id=573168161886');
}