validation

Frontend Validation
----------------------
<input type="text" pattern=".{11,11}" title="Please Insert Valid BD Mobile Number" required>
<input type="tel" pattern="\d{11}" required>
<input type="number" min="10000000000" max="99999999999" oninput="this.value = this.value.slice(0, 11)" required>
          
use Illuminate\Support\Facades\Validator;

$request->validate([
  'title' => 'required|max:255',
]);

$this->validate($request, [
    'name' => 'unique:rooms,name,' . $id, // Ignore the current record's name FOR UPDATE SLUG
    'name' => 'required|exists:users,email|unique:users|string|nullable|date|min:22|max:255|array|numeric|confirmed',
    'email' => 'exists:users,email|email',
    'image' => 'image|mimes:jpeg,png,jpg,gif,bmp|max:2048',
    'video' => 'mimetypes:video/avi,video/mpeg,video/quicktime|',
],
[
    'name.required'=>'Message Pass ...'    
]);
          
return back()->flash('status', 'Task was successful!')          
return back()->with('status', 'Task was successful!')          
@if(session('status')) <p> {{ session('status') }} </p>@endif
          
<input id="title" type="text" value="{{ old('title') }}" name="title" class="@error('title') is-invalid @enderror">
@error('title') <div class="alert alert-danger">{{ $message }}</div> @enderror

$rules = [ 'mobile' => 'min:11|max:11' ];
$validator = Validator::make($request->all(), $rules);
if ($validator->fails()) {
    return redirect()->back()->with('error','Please give a valid mobile number');
}

@if ($errors->any())
    <div class="alert alert-danger">
        <ul>
            @foreach ($errors->all() as $error)
                <li>{{ $error }}</li>
            @endforeach
        </ul>
    </div>
@endif
LOGIN
    public function login(Request $request): RedirectResponse
    {   
        $input = $request->all();
     
        $this->validate($request, [
            'email' => 'required|email',
            'password' => 'required',
        ]);
        
        $user = User::where('email', $request->email)->first();
        if ($user) {
            
            if(auth()->attempt(array('email' => $input['email'], 'password' => $input['password'])))
            {
                if (auth()->user()->type == 'admin') {
                    return redirect()->route('admin.home');
                }else{
                    return redirect()->route('home');
                }
            }else{
                return redirect()->route('login')->with('error','Password Are Wrong.');
            }
            
        }
        else{
            return back()->with('error','Email does not exist, Register First.');
        }

}

LOGIN VALIDATION-------------------------------
        $this->validate($request, [
            'email' => 'required|email|exists:users,email',
            'password' => [
                'required','min:8',
                function ($attribute, $value, $fail) use ($request) {
                    $user = User::where('email', $request->email)->first();
                    if($user){
                        if (!$user || !Hash::check($value, $user->password)) {
                            // $fail($attribute . ' is incorrect.');
                            $fail('Password does not match.');
                        }
                    }
                    else{ $fail(''); } 
                },
            ],
        ],[
            'email.exists'=>'Email not found.' , 
            'password.min'=>'The password field must be at least 8 characters.' , 
        ]);
REGISTER VALIDATION-------------------------------
        return Validator::make($data, [
            'name' => 'required|string|max:255',
            'email' => 'required|string|email|max:255|unique:users',
            'password' => 'required|string|min:8|confirmed',
        ],[
            'email.unique'=>'The email has already been taken.' , 
            'password.min'=>'The password field must be at least 8 characters.' , 
            'password.confirmed'=>'The password field confirmation does not match.' , 
        ]);