Laravel validation Error messages to string - php

Question

I want to convert laravel validation error array to a comma separated string. This is to use in an api service for an ios application. So that the iOs developer can process error messages easily.
I tried,
$valArr = [];
foreach ($validator->errors() as $key => $value) {
$errStr = $key.' '.$value[0];
array_push($valArr, $errStr);
}
if(!empty($valArr)){
$errStrFinal = implode(',', $valArr);
}
But it is not working.

Answer 1

You should do like this :
$errorString = implode(",",$validator->messages()->all());
P.S. Assuming
$validator = Validator::make($dataToBeChecked,$validationArray,$messageArray)

Answer 2

The $validator->errors() returns a MessageBag,
see: https://laravel.com/api/5.3/Illuminate/Support/MessageBag.html.
You are close, you need to call the getMessages() function on errors(), so:
foreach ($validator->errors()->getMessages() as $key => $value) {
Hope this helps :)

Answer 3

You are not converting validation errors to array.Please use the below function and pass validation errors as parameter.
public function validationErrorsToString($errArray) {
$valArr = array();
foreach ($errArray->toArray() as $key => $value) {
$errStr = $key.' '.$value[0];
array_push($valArr, $errStr);
}
if(!empty($valArr)){
$errStrFinal = implode(',', $valArr);
}
return $errStrFinal;
}
//Function call.
$result = $this->validationErrorsToString($validator->errors());

Answer 4

If you are doing it like me without your validator and you are pulling messages from the exception you can use laravel helper Arr::flatten($array);
Link and code are for laravel 8.x but I tested this with 5.7 ;) It works.
From documentation:
use Illuminate\Support\Arr;
$array = ['name' => 'Joe', 'languages' => ['PHP', 'Ruby']];
$flattened = Arr::flatten($array);
// ['Joe', 'PHP', 'Ruby']
My code:
try {
$request->validate([
'test1' => 'required|integer',
'test2' => 'required|integer',
'test3' => 'required|string',
]);
} catch (ValidationException $validationException) {
return response()->json([
'type' => 'error',
'title' => $validationException->getMessage(),
'messages' => Arr::flatten($validationException->errors())
], $validationException->status);
} catch (\Exception $exception) {
return response()->json([
'type' => 'error',
'title' => $exception->getMessage(),
], $exception->getCode());
}
As you can see I am pulling the message and setting it as my title. Then I am using Arr::flatten($validationException->errors()) to get the validation messages and but to flatten my array for SweetAlert2 on the frontend.
I know I am late but I hope it will help someone that comes across these problems.
Greetings! :)