Laravel：如何在另一个表的所有行中以数组格式获取M：M关系的特定列数据

Question

Laravel eloquent query to get data from M:M relationship

person_table : id, name_of_person
skills_table : id, name_of_skill
M:M table    : person_table_id , skills_table_id

and result will be

{
  id: 1,
  name: harat,
  skills: [
    'php',
    'laravel',
    'reactjs',
    'nodejs',
  ]
}

Answer 1

If you check the documentation , you will see that you can use with so you can eager load the skills .

So, you should have a code like this:

$person = Person::with('skills')->first();

And then if you do $person->skills you should have a Collection (not an array) holding all the Skills like this id: 1, name: php , id:2, name: laravel , etc.

So, you should format your resulting models like:

$person->map(function (Person $person) {
    return [
        'id' => $person->id,
        'name' => $person->name,
        'skills' => $person->skills->pluck('name'),
    ];
});

You can also take advantage of API Resources so you can format your output.