fabpot/Twig — comment on commit f742efd602f310c37fdbe40c5ffcf4d61f5a4f52
File: lib/Twig/Template.php line 251
By dkarlovi:

If $item is a float (and not int), you get Warning: array_key_exists() [function.array-key-exists]: The first argument should be either a string or an integer in lib/Twig/Template.php here