Laravel - Collections - Method Pluck
The pluck
method retrieves all of the values for a given key:
$collection = collect([
['product_id' => 'prod-100', 'name' => 'Desk'],
['product_id' => 'prod-200', 'name' => 'Chair'],
]);
$plucked = $collection->pluck('name');
$plucked->all();
// ['Desk', 'Chair']
You may also specify how you wish the resulting collection to be keyed:
$plucked = $collection->pluck('name', 'product_id');
$plucked->all();
// ['prod-100' => 'Desk', 'prod-200' => 'Chair']
The pluck
method also supports retrieving nested values using "dot" notation:
$collection = collect([
[
'speakers' => [
'first_day' => ['Rosa', 'Judith'],
'second_day' => ['Angela', 'Kathleen'],
],
],
]);
$plucked = $collection->pluck('speakers.first_day');
$plucked->all();
// ['Rosa', 'Judith']
If duplicate keys exist, the last matching element will be inserted into the plucked collection:
$collection = collect([
['brand' => 'Tesla', 'color' => 'red'],
['brand' => 'Pagani', 'color' => 'white'],
['brand' => 'Tesla', 'color' => 'black'],
['brand' => 'Pagani', 'color' => 'orange'],
]);
$plucked = $collection->pluck('color', 'brand');
$plucked->all();
// ['Tesla' => 'black', 'Pagani' => 'orange']