Available Validation Rules: Specifying A Custom Column Name

'state' => 'exists:states,abbreviation'

'email' => 'exists:connection.staff,email'

Use Illuminate\Validation\Rule;

Validator::make($data, [
    'email' => [
        'required',
        Rule::exists('staff')->where(function ($query) {
            $query->where('account_id', 1);
        }),
    ],
]);

Use Illuminate\Validation\Rule;

Validator::make($data, [
    'zones' => [
        'required',
        Rule::in(['first-zone', 'second-zone']),
    ],
]);

'video' => 'mimetypes:video/avi,video/mpeg,video/quicktime'