array_key_exists() expects parameter 2 to be array, null given in orderfunctions.php

[LeonardChallis]

Hi guys,

 

I've tried searching for this in Google and all I see are other people's web sites that have the same issue

 

On my cart page (cart.php) I get the following error:

 

array_key_exists() expects parameter 2 to be array, null given in /path/to/orderfunctions.php

 

In my configuration.php I have $display_errors set to E_ALL ^ E_NOTICE. If I add ^ E_WARNING then the errors go. So maybe the real question here is, should I be hiding warnings on production?

 

Thanks for any advice on the issue.

[sentq]

You need to hide all errors in production.

 

The real question is why you get this error in first place