我必须查询数据库中的数据以在laravel中使用Illuminate，然后要从此数组的所有索引中获取所有属性值。
array:36 [▼
0 => RepaymentSchedule {#553 ▶}
1 => RepaymentSchedule {#554 ▶}
2 => RepaymentSchedule {#555 ▶}
3 => RepaymentSchedule {#556 ▶}
4 => RepaymentSchedule {#557 ▶}
5 => RepaymentSchedule {#558 ▶}
6 => RepaymentSchedule {#559 ▶}
7 => RepaymentSchedule {#560 ▶}
8 => RepaymentSchedule {#561 ▶}
9 => RepaymentSchedule {#562 ▶}
10 => RepaymentSchedule {#563 ▶}
11 => RepaymentSchedule {#564 ▶}
12 => RepaymentSchedule {#565 ▶}
13 => RepaymentSchedule {#566 ▶}
14 => RepaymentSchedule {#567 ▶}
15 => RepaymentSchedule {#568 ▶}
16 => RepaymentSchedule {#569 ▶}
17 => RepaymentSchedule {#570 ▶}
18 => RepaymentSchedule {#571 ▶}
19 => RepaymentSchedule {#572 ▶}
20 => RepaymentSchedule {#573 ▶}
21 => RepaymentSchedule {#574 ▶}
22 => RepaymentSchedule {#575 ▶}
23 => RepaymentSchedule {#576 ▶}
24 => RepaymentSchedule {#577 ▶}
25 => RepaymentSchedule {#578 ▶}
26 => RepaymentSchedule {#579 ▶}
27 => RepaymentSchedule {#580 ▶}
28 => RepaymentSchedule {#581 ▶}
29 => RepaymentSchedule {#582 ▶}
30 => RepaymentSchedule {#583 ▶}
31 => RepaymentSchedule {#584 ▶}
32 => RepaymentSchedule {#585 ▶}
33 => RepaymentSchedule {#586 ▶}
34 => RepaymentSchedule {#587 ▶}
35 => RepaymentSchedule {#588 ▶}
]
我尝试用风箱
$collapsed = $loan->schedule->all();
dd($collapsed);
$collection = $collapsed->each(function ($item, $key) {
dd($key);
});
在laravel 5.1及更高版本中，您可以使用Collection对象的pluck方法：
$plucked = $collapsed->pluck('id');
dd($plucked->all());
文件：https：//laravel.com/docs/5.2/collections#method-pluck
但是由于您使用的是L5.0，所以这是不可能的，我建议您array_column改用PHP5方法函数解决此问题：
$ids = array_column($collapsed->toArray(), 'id');
dd($ids);
编辑：如果要检索多个属性，可以使用以下->lists()方法：
$values = $loan->schedule->lists('id', 'interest', 'principal');
dd($values);
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我来说两句