如何使用循环生成自定义字符串？

Question

I want to automatically add " " between array values. My array is sent from the form and I can break it down and get the values. İ need to create string like this:

$data = $new['1']."

".$new['2']."

\"...

I'm having trouble because array values ​​are a number variable. How can i solve this problem?

$title = $request['title'];
$title = explode("
", $title);
foreach($title as $titl){
    $tit = rtrim($titl);
    $a[] = $tit;
}
$a1 = array_filter($a);
$new = array_values($a1);
$count = count($title);