Question

I have a Problem developing in PHP. First I have to say that I’m not the experienced PHP developer on this Planet.

My Code/Problem is as followed:

In file Controllers\TestController.php:

  <?php
  namespace My\Test\Controllers;

  class TestController
  {
     public function HelloTest()
     {
          echo 'Hello!';
     } 
  }
?>

When I want to include this class in another php file like this

File Models\TestModel.php:

<?php
     namespace My\Test\Models;
     use My\Test\Controllers;         

     class TestModel
     {
       public function TestModelFunction()
       {
         $control = new TestClass();
         $control->HelloTest();
       }
     } 
?>

File index.php_

 <?php
      use My\Test\Models;

      $model = new TestModel();
      $model->TestModelFunction();
  ?>

That just won’t work… I’ll always get the following error:

Class ‘TestModel’ not found!

When I now add:

include_once 'Models/TestModel.php' in index.php
AND
include_once '..Controllers/TestController.php' in TestModel.php
then it works…

Folder Structure:

Project
|-Models
|  TestModel.php
|-Controllers
|  TestController.php
|index.php

But do I really have to specify every Time where the files are?

Answer 1

Yes you will always have to include the files that define your classes.

The namespace is just a way to package your classes together, not a way to automatically include PHP files.

If your are looking for a way to automatically include PHP files when needed, have a look on autoload.