将值推入关联数组中的键

Question

Given:

$groups           = EveMarketGroupsEntity::distinct()->select('name')->get();
$groupInformation = [];

if (!is_null($groups)) {
    foreach ($groups as $group) {
    }
}

How do I do the following properly

if (!is_null($groups)) {
    foreach ($groups as $group) {
        $groupInformation[$group->name][]= EveMarketGroupsEntity::where('name', $group->name)->first()->item();
    }
}

Right now I get:

array:818 [▼
  "Weaponry" => array:1 [▶]
  ...
]

When Weaponry should have more then 1 element. In fact:

array:818 [▼
  "Weaponry" => array:1 [▶]
  "Special Edition Industrial Ships" => array:1 [▶]
  "Nanite Injectors" => array:1 [▶]
  "Vehicles and Gear" => array:1 [▶]
  "Rapid Light Missile Launchers" => array:1 [▶]
  "Standard Light Missiles" => array:1 [▶]
  "Jump Bridge" => array:1 [▶]
  "Missile Launcher Rigs" => array:1 [▶]
  "Strip Miners" => array:1 [▶]
  "Freighters" => array:1 [▶]
  ...
]

They should all have more then 1 element. What am I missing?

Question: How do I push the same element on to the same key thus creating an array: array('key' => [elm, elm, elm ...])

Answer 1

So, (Feedback is welcome, especially if you down vote this)

foreach ($groups as $group) {
    $groupInformation[$group->name] = EveMarketGroupsEntity::where('name', $group->name)->first()->item()->get()->all();
}

This worked for me ...

Larvel Collection - all() docs