unique collection – Laravel Collection Get Unique Values Example

unique collection method can be used to get all the unique items in the collection. it’s part of the Enumerable contract.

unique collection

also you can safely use it to get a Collection instance. and then you can read my prev article like as Get Unique Collection Values(Remove Duplicates From Collection) Using Laravel

Example 1: Laravel Controller Code:

unique();
  
        dd($records);
    }
}

Result

Array
(
    [0] => 1
    [1] => 2
    [2] => 4
    [3] => 5
    [4] => 3
    [9] => 6
    [10] => 8
    [11] => 9
)

Don’t miss : Laravel Sum Query with Where Condition Example

Example 2: Controller Code:

 1, "name" => "Ridham"],
                [ "id" => 1, "name" => "Ridham"],
                [ "id" => 2, "name" => "Mayur"],
                [ "id" => 3, "name" => "Kishan"],
            ],
            [
                [ "id" => 1, "name" => "Ridham"],
                [ "id" => 3, "name" => "Keyur"],
            ]
        ] );
  
        $records = $records->map(function ($array) {
            return collect($array)->unique('id')->all();
        });
   
        dd($records);
    }
}

Result

Array
(
    [0] => Array
        (
            [0] => Array
                (
                    [id] => 1
                    [name] => Ridham
                )
            [2] => Array
                (
                    [id] => 2
                    [name] => Mayur
                )
            [3] => Array
                (
                    [id] => 3
                    [name] => Kishan
                )
        )
    [1] => Array
        (
            [0] => Array
                (
                    [id] => 1
                    [name] => Ridham
                )
            [1] => Array
                (
                    [id] => 3
                    [name] => Keyur
                )
        )
)

I hope you get an idea about unique collection.
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