How to return by and larger element in an array?

Question

PHP

actually here is the array

[
"World",
"Hello",
"Hello World"
]

I need to return the largest element by the number of letters. How I can't imagine.

Answer 1

$array = [
  "World",
  "Hello",
  "Hello World"
];

$last_length = 0;
$last_key = null;
foreach ($array as $key => $value) {
    if (mb_strlen($value) > $last_length) {
        $last_key = $key;
    }
}

var_dump($array[$last_key]);