The Arr::has function checks that a given item exists in an array using "dot" notation.
$array = ['products' => ['desk' => ['price' => 100]]];
$hasDesk = Arr::has($array, 'products.desk');
// true
$array1 = [
['id' => 1, 'name' => 'John Doe'],
['id' => 2, 'name' => 'Jane Doe']
];
$result = Arr::has($array1, '2.name');
// false
\ArrayAccess|array $array
string $key
bool