php - Showing validation errors to view -

i want show validation errors users in comma seperated

i.e.,

the username field required, password field required

so far can able send validation error messages view this

$validation->messages()

but thing can't able

@if(session::has('message')) <p class="alert">{{ session::get('message') }}</p> @endif

{{ $errors->first('username', '<div class="error">:message</div>') }}

the thing can pass messages normal text.

so, how can pass validation messages view plain text (rather array or object)

update :

i mean can works in controller , not in view

in controller:

return implode(',',$validation->errors()->all());

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