Symfony custom class autoloading doesn`t work

Question

I use symfony 2.4.0. I want to use my custom class as discussed here: Autoloading a class in Symfony 2.1. I have created subfolder in src:

namespace Yur;

class MyClass {
    public go() {
        var_dump('hello!! 32');
    }
}

In my controller, I made this:

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Yur\MyClass;

class WelcomeController extends Controller
{
    public function indexAction()
    {
        $my = new MyClass();
        $my->go();
        die();
 ...

but it makes an exception:

ClassNotFoundException: Attempted to load class "MyClass" from namespace "Yur" in /var/www/shop.loc/src/Acme/DemoBundle/Controller/WelcomeController.php line 12. Do you need to "use" it from another namespace?

After I have got this exception, I decided consciously to make syntax error exception in my class to see if it loaded. I changed class MyClass ... to class4 MyClass ..., but doesnt got asyntax error` exception. And I decided, that my class is not loaded. Is anyone knows why? And what I must to do to resolve?

Alana Storm · Accepted Answer · 2013-12-27 02:35:04Z

4

A few things. First, in your code sample above, you have

public go() {
    var_dump('hello!! 32');
}

which should be

public function go() {
    var_dump('hello!! 32');
}

The former raises a parser error in PHP. and probably isn't what you want.

Second, the error

ClassNotFoundException: Attempted to load class "MyClass" from namespace "Yur" in /var/www/shop.loc/src/Acme/DemoBundle/Controller/WelcomeController.php line 12. Do you need to "use" it from another namespace?

is the error Symfony uses when it attempt to autoload a class, but can't find the file. This usually means your file is named incorrectly, or in the wrong folder. I'd tripped check that you have a file in the directory you think you do.

$ ls src/Yur/MyClass.php

You can also add some debugging to the composer autoload code to see what path it's cooking up for your custom class

#File: vendor/composer/ClassLoader.php
public function findFile($class)
{
    //...
    $classPath .= strtr($className, '_', DIRECTORY_SEPARATOR) . '.php';

    //start your debugging code
    if($class == 'Yur\MyClass')
    {
        //dump the generated path
        var_dump($classPath);

        //dump the default include paths
        var_dump($this->fallbackDirs);
    }

    //...
}

answered Dec 27, 2013 at 2:35

Alana Storm

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2 Comments

yura Over a year ago

Thanks! My problem was in that I dont know that klassname and filename must be the same. I made it various. This helps me to determine where problem is: $ ls src/Yur/MyClass.php`

Charlie Hills Over a year ago

I spent a couple hours not noticing a minor misspelling in a file name, generating this error. Your findFile() tip helped. (I didn't use the sample code, but once I stepped that far into the debugger, I found the issue stepping into this function call within findFile(): $file = $this->findFileWithExtension($class, '.php');

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