EXIF ISOSpeedRatings can be an array

[azaozz]

This trips wp_read_image_metadata(). Seems ISOSpeedRatings may include ISO Speed and ISO Latitude and is returned as array on Android devices.

20807.patch was tested on an Android phone (yes, images can be uploaded from there nicely).

Also hide the drag-drop area on mobile devices (this actually should be in plupload, uploader.features.dragdrop should be false for mobile).

(error)

array_shift() instead of $array['ISOSpeedRatings'][0].

Rather than array_shift(), we should use reset().

Looking into this patch now and testing on my Android device.

Looks good. 20807.diff​ doesn't shuffle around code, and makes the array check a bit cleaner.

Tested and confirmed as working for an Android device. Suggesting commit.

Obviously that should be ! hasClass('mobile') -- that was me doing some testing.

In [20978]:

Fix notice in wp_read_image_metadata() when EXIF ISOSpeedRatings is array, props nacin, fixes #20807