Class 'Arr' not found

[sagikazarmark]

call_user_func_array() expects parameter 1 to be a valid callback, class 'Arr' not found

I get this message related to this line.

[WanWizard]

Arr is expected to be present in the global namespace. This is done in the Framework via the Facade classes. If you use this repo on it's own, outside the framework, you need to make sure Arr is available like it is done in phpunit:

// make Arr available in the global namespace
class_alias('Fuel\Common\Arr', 'Arr');

The correct solution is to have a DiC extension definition (like "getArrInstance') that can be attached to a class that needs Arr, so it can fetch an instance itself. This is how v2 handles it for all other dependencies.

[sagikazarmark]

Does that mean that I can do this in my package and use this package later with Fuel's DiC? You talked about extensibility, doesn't this break it?

What about this?

if( ! class_exists('Arr'))
{
    // make Arr available in the global namespace
    class_alias('Fuel\Common\Arr', 'Arr');
}

[emlynwest]

Personally I feel this should not be the case. It should be possible to use as much of the common package without having to set up little bits and pieces like this. It should be possible to inject an instance of Arr or to have the class constructed for you if one is not passed.

[sagikazarmark]

@stevewest The actual problem is that DataContainer uses Arr, and it assumes it exists in the root namespace. So it is OK to inject it in YOUR class, but in the actual case, it does not matter.

[emlynwest]

Yes, I know that. What I propose is a solution to that. You should not have to alias a class to set up the data container like that.

[WanWizard]

Which is what I wrote as "the correct solution" ;)

[sagikazarmark]

First step to the correct solution:

https://github.com/fuelphp/common/blob/master/src/Providers/FuelServiceProvider.php#L45

Arr Proxy uses an instance of Arr class resolved from the container.