laravel make rule

1//For float, must use numeric validator
2
3/**
4  * Get the validation rules that apply to the request.
5  *
6  * @return array
7 */
8public function rules()
9{
10  return [
11    'field' => 'numeric'
12  ];
13}

1php artisan make:request StoreBlogPost

1use Illuminate\Support\Facades\Validator;
2use Illuminate\Validation\Rule;
3
4Validator::make($data, [
5    'zones' => [
6        'required',
7        Rule::in(['first-zone', 'second-zone']),
8    ],
9]);

1/**
2 * Store a new blog post.
3 *
4 * @param  Request  $request
5 * @return Response
6 */
7public function store(Request $request)
8{
9    $validatedData = $request->validate([
10        'title' => 'required|unique:posts|max:255',
11        'body' => 'required',
12    ]);
13
14    // The blog post is valid...
15}

1public function store()
2{
3    $this->validate(request(), [
4        'song' => [function ($attribute, $value, $fail) {
5            if ($value <= 10) {
6                $fail(':attribute needs more cowbell!');
7            }
8        }]
9    ]);
10}
11

1/**
2 * Configure the validator instance.
3 *
4 * @param  \Illuminate\Validation\Validator  $validator
5 * @return void
6 */
7public function withValidator($validator)
8{
9    $validator->after(function ($validator) {
10        if ($this->somethingElseIsInvalid()) {
11            $validator->errors()->add('field', 'Something is wrong with this field!');
12        }
13    });
14}