In Laravel 11.x & Laravel 12.x, the `Arr::only()` method is a convenient utility provided by the `Illuminate\Support\Arr` class. This method allows you to extract a subset of key-value pairs from an array based on a specified list of keys.
Syntax:-
<?php Arr::only(array $array, array|string $keys): array ?>Parameters `$array`: The array from which you want to extract the key-value pairs. `$keys`: An array or a single string representing the keys you want to extract from the array. Return Value The method returns a new array containing only the key-value pairs from the original array that match the specified keys.
Example Usage
<?php use Illuminate\Support\Arr; $array = [ 'name' => 'John', 'age' => 30, 'email' => 'john@example.com', 'city' => 'New York' ]; // Extract only the 'name' and 'email' keys $result = Arr::only($array, ['name', 'email']); print_r($result); ?>Output
<?php Array ( [name] => John [email] => john@example.com ) ?>Explanation 1. The original array contains four key-value pairs. 2. The `Arr::only()` method is used to extract only the `name` and `email` keys from the array. 3. The resulting array contains only the specified keys and their corresponding values.
Additional Example with Single Key
You can also pass a single key as a string:<?php $result = Arr::only($array, 'name'); print_r($result); ?>Output:-
<?php Array ( [name] => John ) ?>This method is part of Laravel's extensive collection of helper functions, which are designed to make working with arrays and other data structures more convenient and expressive.