How to customize or Change validation error messages

• Validation error messages customization in laravel

  Step 1. Create form request using CLI

  php artisan make:request StorePostRequest
  

  Step 2. Add validation rules to rules() method and custom messages in messages() method in created file

  // app\Http\Requests\StorePostRequest.php

  public function authorize()
  {
      return true;
  }
  public function rules()
  {
      return [
          'title' => 'required|unique:posts|max:255',
          'body' => 'required',
      ];
  }
  
  public function messages(){
      return [
          'title.required' => 'Post title is required',
          'body.required' => 'Post Body is required',
      ];
  }
  

  Step 3. Make changes in your controller file // app\Http\Controllers<YourController>.php

  use App\Http\Requests\StorePostRequest;
  
  public function store(StorePostRequest $request)
  {
      $validated = $request->validated();
      dd($validated);
  }
  

  //Step 4. Display validation errors in view file

  @if($errors->any())
  <div class="alert alert-danger" role="alert">
      <ul class="list-unstyled">
          @foreach($errors->all() as $error)
          <li> {{ $error }} </li>
          @endforeach
      </ul>
  </div>
  @endif
  

  You can customize or change the validation error messages used by the form request by changing the array of attribute / rule pairs ('title.required') with the custom error message in messages() method Like for required title attribute you can use  'title.required' => 'Post title is required'.

• Custom validation error messages using validate() or Validator::make() method

  Method 1. Custom validation error message using Validator facade. //Before class definition.

  use Illuminate\Support\Facades\Validator;
  

  // Inside controller’s method
  $validator = Validator::make($request->all(),  [
      'title' => 'required',
      'body' => 'required',
  ],
  [
      'required' => 'The :attribute field can not be blank.',
      'body.required' => 'Custom validation message for body attribute on required.',
  ]);
  
  if($validator->fails()){
      return  redirect()->back()->withErrors($validator)->withInput();
  }
  

  Method 2. Custom validation error message using validate() method. // inside controller's method - app\Http\Controllers<YourController>.php

  $this->validate($request, [
      'title' => 'required',
      'body' => 'required',
  ],
  [
      'required' => 'The :attribute field can not be blank.',
      'body.required' => 'Custom validation message for body attribute on required.',
  ]);
  

  We can easily add custom validation error messages by passing a third argument to the validate() or Validator::make() method containing an array of our custom validation error messages. Basically, these methods accept four parameters, form request data, validation rules, custom error messages, and custom attributes.

• How to customize and change validation error message ?

  We can easily add custom validation error messages by passing a third argument to the validate() or Validator::make() method containing an array of our custom validation error messages. Basically, these methods accept four parameters, form request data, validation rules, custom error messages, and custom attributes.

• How to show only error message in Laravel Validator?

  You can get all the validation errors message with $errors = $validator->errors(); and return to view using return redirect()->back()->withErrors($errors); in controller class and display in Laravel blade.

• How to use custom place-holder replacements for error messages?

  When creating a custom validation rule, you may sometimes need to define custom place-holder replacements for error messages. You may do so by creating a custom Validator as described above, and adding a replaceXXX function to the validator.

• How to set custom Error messages in Laravel?

  You can use below three method to set custom error message in Laravel

  • Using Language File
  • Directly in Controller Code
  • Using Custom Request

• How to return custom error message from controller method?

  In most cases, you will probably specify your custom messages in a language file instead of passing them directly to the Validator. To do so, add your messages to custom array in the resources/lang/xx/validation.php language file.

• How do I create a custom message in Laravel validation?

  $messages = array(
  'required' => 'The :attribute field is required. ',
  );
  $validator = Validator::make($input, $rules, $messages);
  

• What is the method used for specifying custom message for validation errors in form request?

  What is the method used for specifying custom message for validation errors in form request? After checking if the request failed to pass validation, you may use the withErrors method to flash the error messages to the session.

• How to customize built-in form validation error messages

  we can customize the error messages by passing a second array as an argument, containing keys formed using the name of the parameter, dot, and then the name of the validation rule - the value will be the error message we want to display.

• Which method is used to check validation error in laravel?

  After checking if the request failed to pass validation, you may use the withErrors method to flash the error messages to the session. When using this method, the $errors variable will automatically be shared with your views after redirection, allowing you to easily display them back to the user.

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