How to populate database values in table - php

Question

I'm trying to fetch my records in my users table and populate them in table if the input is correct using Raw SQL Queries. Trying this convert from SQL to Laravel Queries:
SELECT * FROMusersWHERE username = 'shadow'
Unfortunately it gives me a error.
Undefined variable: users (View: C:\Users\JohnFrancis\LaravelFrancis\resources\views\account\search.blade.php)
Controller:
User is my Model which has a protected $table = 'users which is my database.
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Models\User;
use App\Http\Requests;
use DB;
class AccountController extends Controller
{
public function getEmployee()
{
return view ('account.search');
}
public function postEmployee(Request $request)
{
$this->validate($request, [
'username' => 'required|alpha|max:20',
]);
$username = $request['username']; //Input will be passed to $request array. Accessing search field.
$user = new User();
$user = DB::select('select * from users where username = ?', [1]);
return view ('account.search', ['user' => 'myuser']);
}
}
View:
#section ('content')
<div class = "col-md-10">
<form class = "form-vertical" role = "form" method = "post" action = "{{ route ('account.search') }}">
<div class = "form-group {{ $errors->has('username') ? ' has-error' : '' }}">
<label for = "username" class = "control-label">Search</label>
<input type = "text" name = "username" class = "form-control" placeholder = "Find people">
#if ($errors->has('username'))
<span class = "help-block">{{ $errors->first('username') }}</span>
#endif
</div>
<div class = "form-group">
<button type = "submit" class = "btn btn-default">Search</button>
</div>
<input type = "hidden" name = "_token" value = "{{ Session::token() }}">
</form>
<table class = "table">
<br>
<thead>
<tr>
<th>ID</th>
<th>Firstname</th>
<th>Lastname</th>
<th>Middlename</th>
<th>Email</th>
<th>Username</th>
<th>Actions</th>
</tr>
</thead>
<tbody>
#foreach ($user as $myuser)
<tr class = "success">
<td>{{ $myuser->id }}</td>
<td>{{ $myuser->first_name }}</td>
<td>{{ $myuser->last_name }}</td>
<td>{{ $myuser->middle_name }}</td>
<td>{{ $myuser->email }}</td>
<td>{{ $myuser->username }}</td>
<td></td>
<td>
<button type = "submit" class = "btn btn-warning">Update</button>
<button type = "submit" class = "btn btn-danger">Archive</button>
</td>
</tr>
#endforeach
</tbody>
</table>
</div>
#endsection
Routes:
Route::get('/search',
[
'uses' => '\App\Http\Controllers\AccountController#getEmployee',
'as' => 'account.search',
]);
Route::post('/search',
[
'uses' => '\App\Http\Controllers\AccountController#postEmployee',
]);

Answer 1

This should do what you want:
$user = User::where('username', $username)->get();
if ($user->isEmpty()) {
dd('Failed');
else {
dd('Success');
}

Answer 2

If you are using a model, there is no need for DB::select. You would find a User by their username like so:
$user = User::where('username', '=', (the username))->get();