How to validate array in Laravel?

In Laravel, you can use the validate method on the Validator facade to validate an array of form data. The validate method accepts the following arguments:

• The request data to be validated (e.g. $request->all())
• An array of validation rules

Here's an example of how you can use the validate method to validate an array of form data:

<?php

use Validator;

...

$validator = Validator::make($request->all(), [
    'name' => 'required|string|max:255',
    'email' => 'required|email|unique:users',
    'password' => 'required|string|min:6|confirmed',
]);

if ($validator->fails()) {
    return redirect('form')
                ->withErrors($validator)
                ->withInput();
}

// The form data is valid, you can continue processing it...

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The make method on the Validator facade creates a new validator instance with the given data and validation rules. The fails method checks if the validation failed, and if it did, you can redirect the user back to the form with the validation errors and their input using the withErrors and withInput methods.

You can also use the validate method as a route middleware to validate form data before a request is handled by the route closure or controller action.

<?php

Route::post('form', function (Request $request) {
  // The form data is already validated...
})->middleware('validate:name,email,password');

In this example, the validate middleware will validate the name, email, and password fields of the request data. If the validation fails, a HTTP response with the validation errors will be automatically generated.