How to change user password with validation using laravel ?

1. Define route inside web.php

use App\Http\Controllers\AdminController;

Route::controller(AdminController::class)->group(function(){
    //password
    Route::get('/change/password','ChangePassword')->name('change.password');
    Route::post('/update/password','UpdatePassword')->name('update.password');
});

2. Create html form for change password
resources\views\admin\admin_change_password.blade.php

@extends('admin.admin_master')
@section('admin')
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<div class="page-content">
<div class="container-fluid">

<div class="row">
    <div class="col-12">
        <div class="card">
            <div class="card-body">

            @if(count($errors))
                @foreach($errors->all() as $error)
                <p class="alert alert-danger alert-dismissible fade show"> {{ $error }} </p>
                @endforeach
            @endif
                <h4 class="card-title">Change Password</h4>
               <form method='post' action="{{ route('update.password') }}" enctype="multipart/form-data">
                @csrf
                    <div class="row mb-3">
                        <label for="example-text-input" class="col-sm-2 col-form-label">Old Password</label>
                        <div class="col-sm-10">
                            <input name='oldpassword' class="form-control" type="password" placeholder="Old Password" id="oldpassword" value="">
                        </div>
                    </div>
                    <!-- end row -->

                    <div class="row mb-3">
                        <label for="example-text-input" class="col-sm-2 col-form-label">New Password</label>
                        <div class="col-sm-10">
                            <input name='newpassword' class="form-control" type="password" placeholder="New Password" id="newpassword" value="">
                        </div>
                    </div>
                    <!-- end row -->

                    <div class="row mb-3">
                        <label for="example-text-input" class="col-sm-2 col-form-label">Confirm Password</label>
                        <div class="col-sm-10">
                            <input name='confirm_password' class="form-control" type="password" placeholder="Confirm Password" id="confirm_password" value="">
                        </div>
                    </div>
                    <!-- end row -->

                    
                
                <input type='submit' class="btn btn-info waves-effect waves-light" value="Change Password">

                </form>
               
            </div>
        </div>
    </div> <!-- end col -->
</div>

</div>
</div>

 
@endsection

3. Create a controller for update function

app\Http\Controllers\AdminController.php

public function UpdatePassword(Request $request){

        $validaData = $request->validate([
            'oldpassword' => 'required',
            'newpassword' => 'required',
            'confirm_password' => 'required|same:newpassword'
        ]);

        $hashedPassword = Auth::user()->password;
        if(Hash::check($request->oldpassword,$hashedPassword)){
            $users = User::find(Auth::id());
            $users->password = bcrypt($request->newpassword);
            $users->save();

            session()->flash('message','Password Updated Successfully');
            return redirect()->back();
        } else{
            session()->flash('message','Old password not matching');
            return redirect()->back();
        }
    }// End Method