Laravel form validation max chars using 2 fields

Question

i have a simple registeration form i use this validation for creating u new user

   $validator = Validator::make($request->all(), [
        'first_name' => ['required'],
        'last_name' => ['required'],
        'phone' => ['required', 'string', 'max:255'],
        'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
        'password' => ['required', 'string', 'min:8', ],
        
    ]);

    if ($validator->fails()) {
        return response()->json(['message' => 'Errors!','errors'=>$validator->errors()], 500);
    }else{
        return response()->json(['message' => 'User registered successfully'], 201);

    }

now i need to make a vidation rule to combine last and first name together and validate max chars

Answer 1

i would first add the full_name entry to the request object, and then i would validate with the built in validation rules (either max or between).

$request->request->add(['full_name' => $request->input('first_name').' '.$request->input('last_name')]);

$validator = Validator::make($request->all(), [
    'first_name' => ['required'],
    'last_name' => ['required'],
    'full_name' => ['max:10'],//or between:6,10
    'phone' => ['required', 'string', 'max:255'],
    'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
    'password' => ['required', 'string', 'min:8', ],
    
]);

if ($validator->fails()) {
    return response()->json(['message' => 'Errors!','errors'=>$validator->errors()], 500);
}else{
    return response()->json(['message' => 'User registered successfully'], 201);

}