在Laravel中按名称分组的数组

$users = [
    ['name' => 'Alice', 'age' => 25],
    ['name' => 'Bob', 'age' => 30],
    ['name' => 'Alice', 'age' => 35],
    ['name' => 'Charlie', 'age' => 40],
];

$grouped = collect($users)->groupBy('name');

// 输出结果
/*
Illuminate\Support\Collection Object
(
    [items:protected] => Array
        (
            [Alice] => Array
                (
                    [0] => Array
                        (
                            [name] => Alice
                            [age] => 25
                        )

                    [1] => Array
                        (
                            [name] => Alice
                            [age] => 35
                        )
                )

            [Bob] => Array
                (
                    [0] => Array
                        (
                            [name] => Bob
                            [age] => 30
                        )
                )

            [Charlie] => Array
                (
                    [0] => Array
                        (
                            [name] => Charlie
                            [age] => 40
                        )
                )
        )
)
*/