filter laravel

1$collection = collect([1, 2, 3, 4]);
2
3$filtered = $collection->filter(function ($value, $key) {
4    return $value > 2;
5});
6
7$filtered->all();
8
9// [3, 4]

1public function index()
2{
3    $myStudents = [
4        ['id'=>1, 'name'=>'Hardik', 'mark' => 80],
5        ['id'=>2, 'name'=>'Paresh', 'mark' => 20],
6        ['id'=>3, 'name'=>'Akash', 'mark' => 34],
7        ['id'=>4, 'name'=>'Sagar', 'mark' => 45],
8    ];
9  
10    $myStudents = collect($myStudents);
11   
12    $passedstudents = $myStudents->filter(function ($value, $key) {
13        return data_get($value, 'mark') > 34;
14    });
15   
16    $passedstudents = $passedstudents->all();
17   
18    dd($passedstudents);
19}