Check if elements in array are elements in another array in Laravel Validator

Question

I would like to validate an array by verifying that all the elements in an input is part of another array. For example, lets say I have three arrays:

$foo = ['John', 'Terry', 'Kim'];
$bar = ['John', 'Kim'];
$sub = ['John', 'Ringo'];

and I have a function called CompareArrays(). Doing CompareArrays($foo, $bar) would result in true because all the elements in $bar exists in $foo. However, CompareArrays($foo, $sub) would result in false because Ringo doesn't exist in foo. Implementing this in vanilla php is

!array_diff($foo, $bar)

How would I do this in a Laravel Validator without making a custom rule (v6.10) ?

Foued MOUSSI · Accepted Answer · 2020-03-01 05:25:46Z

0

You may use in_array:anotherfield.* rule

use Illuminate\Validation\Rule;
//...

$request->validate([
    'arr1' => 'required|array',
    'arr2' => 'nullable|array',
    'arr2.*' => [Rule::requiredIf($request->filled('arr1')), 'in_array:arr1.*']
    /...
]);

edited Mar 1, 2020 at 5:25

answered Mar 1, 2020 at 5:19

Foued MOUSSI

4,8334 gold badges21 silver badges40 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Dragonsnap Over a year ago

Is there any way to do it if arr1 is not part of the request?

Foued MOUSSI Over a year ago

You can merge your arr1 into $request obj via $request->request->add(['arr1' => ['items']]);

Collectives™ on Stack Overflow

Check if elements in array are elements in another array in Laravel Validator

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related