Group By Preserve Key using Laravel Collection

Today, We want to share with you Group By Preserve Key using Laravel Collection.In this post we will show you laravel collection->search, hear for laravel collection to array of objects we will give you demo and example for implement.In this post, we will learn about laravel collection group by multiple with an example.

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Group By Preserve Key using Laravel Collection

There are the Following The simple About laravel collection where like Full Information With Example and source code.

As I will cover this Post with live Working example to develop laravel collection contains multiple, so the laravel’; $collection->sort by key is used for this example is following below.

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Laravel’s Collection Group By Preserve Key

Example

here, we will use same example as above but we will pass preserve key as true. so we can differnce both output as well as see. there is difference is “key”, here will be key name same.

$collection->groupBy('Key_Name', $preserve_key);

public function index()
{
    $collection = collect([
            'first' => ['id'=>1, 'name'=>'Karl Marx', 'subject' => 'Production', 'department' => 'Financial'],
            'second' => ['id'=>2, 'name'=>'Benjamin Franklin', 'subject' => 'Purchasing', 'department' => 'Marketing'],
            'third' => ['id'=>3, 'name'=>'Nelson Mandela', 'subject' => 'Accounting', 'department' => 'Financial'],
            'fourth' => ['id'=>4, 'name'=>'Thomas Jefferson', 'subject' => 'Purchasing', 'department' => 'Marketing'],
        ]);
  
    $grouped = $collection->groupBy('department', true);
      
    dd($grouped);
}

Final Result Execute Collection Object

Illuminate\Support\Collection Object
(
    [items:protected] => Array
        (
            [Financial] => Illuminate\Support\Collection Object
                (
                    [items:protected] => Array
                        (
                            [first] => Array
                                (
                                    [id] => 1
                                    [name] => Karl Marx
                                    [subject] => Production
                                    [department] => Financial
                                )
                            [third] => Array
                                (
                                    [id] => 3
                                    [name] => Nelson Mandela
                                    [subject] => Accounting
                                    [department] => Financial
                                )
                        )
                )
            [Marketing] => Illuminate\Support\Collection Object
                (
                    [items:protected] => Array
                        (
                            [second] => Array
                                (
                                    [id] => 2
                                    [name] => Benjamin Franklin
                                    [subject] => Purchasing
                                    [department] => Marketing
                                )
                            [fourth] => Array
                                (
                                    [id] => 4
                                    [name] => Thomas Jefferson
                                    [subject] => Purchasing
                                    [department] => Marketing
                                )
                        )
                )
        )
)

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