Class 'App\Http\Controllers\DB' not found and I also cannot use a new Model

I have very basic problem. In L4 thes below methods worked out of the box, so now I am lost. Please help. A few days ago I started a Laravel 5.0 project. I have now fresh, clean installation.

Problem 1: When I try to get anything from database

$headquote = DB::table('quotation_texts')->find(176);

I get this:

Class 'App\Http\Controllers\DB' not found

Problem 2: Before I cloned the User.php Model, changed Class name to "Quotation". Below is the content of file Quotations.php put in App root folder:

<?php namespace App;

 use Illuminate\Database\Eloquent\Model;

 class Quotation extends Model  {

    /**
     * The database table used by the model.
     *
     * @var string
     */
    protected $table = 'quotation_texts';
}

Any attempt to use the model

$headquote = Quotation::find(176);

ends up with this:

Class 'App\Http\Controllers\Quotation' not found

Any ideas how I could resolve the issue?

The problem here are PHP namespaces. You need to learn how to use them. As your controller are in App\Http\Controllers namespace, if you refer any other class, you need to add leading backslash (or proper namespace) or add use statement at the beginning of file (before class definition).

So in your case you could use:

$headquote = \DB::table('quotation_texts')->find(176);
$headquote = \App\Quotation::find(176);

or add in your controller class use statement so the beginning of your controller class could look like this:

<?php

namespace App\Http\Controllers;

use DB;
use App\Quotation;

For more information about namespaces you could look at https://stackoverflow.com/questions/24607045/how-to-use-objects-from-other-namespaces-and-how-to-import-namespaces-in-php/24607087 or namespaces in PHP manual

Quick and dirty

use DB; 

OR

\DB::table...

Just add this top of your controller.

use DB;

Use the backslash before db on the header and you can use it then typically as you wrote it before.

Here is the example:

Use \DB;

Then inside your controller class you can use as you did before, like that ie :

$item = DB::table('items')->get();

Try Like this:

<?php
    
    namespace App\Http\Controllers;
    
    use Illuminate\Http\Request;
    
    use DB;
   
    class UserController extends Controller
    {
        
    function  index(){
            
    $users = DB::table('users')->get();
    
    foreach ($users as $user)
    {
        var_dump($user->name);
    }
      
    }
  }

?>

There is problem in name spacing as in laravel 5.2.3

use DB;
use App\ApiModel; OR  use App\name of model; 

DB::table('tbl_users')->insert($users); 
 
OR

DB::table('table name')->insert($users);



model 

class ApiModel extends Model
	{
    	
    	protected $table='tbl_users';

}

I like to do this witch i think is cleaner :

1 - Add the model to namespace:

use App\Employee;

2 - then you can do :

$employees = Employee::get();

or maybe somthing like this:

$employee = Employee::where('name', 'John')->first();