php array_map does not find external class

Asked Dec 17 '14 at 14:12

Active Dec 17 '14 at 14:12

Viewed 70 times

I have 2 classes Helper and Movies.

I Helper i have a static method flats().

Now i need to use the flats() method inside my Movies class:

array_map(['Helper', 'flats'], $data);

But there error come:

Warning: array_map() expects parameter 1 to be a valid callback, class 'Helper' not found in bla bla on line xx

I have a PSR-4 autoloader, and the other Helper methods works great in the Movies class...

asked Dec 17 '14 at 14:12

nutzt

Is the file included in the file which calls it? For example, do you use an autoloader or via `require()` or `include()` – RichardBernards Dec 17 '14 at 14:14
@RichardBernards The PSR-4 autoloading should handle that – Michael Berkowski Dec 17 '14 at 14:14
2

Are they in the same namespace? Did you `use \Namespace\Of\Helper`? – Michael Berkowski Dec 17 '14 at 14:15
@MichaelBerkowski whoops... read over the last line... – RichardBernards Dec 17 '14 at 14:15
yeah there are in the same Namespace. – nutzt Dec 17 '14 at 14:18
2

Try to use `['\full\name\space\of\Helper', 'flats']`. – N.B. Dec 17 '14 at 14:19
You can use the `__NAMESPACE__` constant also, since they're in the same namespace. – Michael Berkowski Dec 17 '14 at 14:22
Ah, here's a good explanation: http://stackoverflow.com/questions/14682356/relative-namespaces-and-call-user-func – Michael Berkowski Dec 17 '14 at 14:23

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