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I am going to explain you example of laravel collection count example. you will learn laravel collection countby example. This tutorial will give you simple example of count collection laravel. you can see laravel collection count by key.

I will give you list of examples of count and countby colletion in laravel. so you can easily use it with your laravel 5, laravel 6, laravel 7, laravel 8, laravel 9, laravel 10 and laravel 11 application. so let's see bellow example that will helps you lot.

Count Syntax:

$collecton->count();

Laravel Collection count() Example

public function index()
{
    $collection = collect([1, 2, 3, 4, 5, 6]);
  
    $count = $collection->count();
       
    dd($count);
}

Output:

6

CountBy Syntax:

$collecton->countBy(
	$callback
);

Laravel Collection countBy() Example

public function index()
{
    $collection = collect(["one", "two", "two", "three", "three", "four"]);
  
    $count = $collection->countBy();
       
    dd($count);
}

Output:

Illuminate\Support\Collection Object
(
    [items:protected] => Array
        (
            [one] => 1
            [two] => 2
            [three] => 2
            [four] => 1
        )
)

Laravel Collection countBy() with function Example

public function index()
{
    $collection = collect([
            ["id"=>1, "name"=>"Hardik", "role"=>"Admin"],
            ["id"=>2, "name"=>"Paresh", "role"=>"Admin"],
            ["id"=>3, "name"=>"Rakesh", "role"=>"User"],
        ]);
  
    $count = $collection->countBy(function ($item) {
                    return $item['role'];
                });
        
    dd($count);
}

Output:

Illuminate\Support\Collection Object
(
    [items:protected] => Array
        (
            [Admin] => 2
            [User] => 1
        )
)

I hope it can help you...