Always return an array from AIOWPSecurity_Utility_File::scan_dir_sort_date() #64
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This is a minor fix - I noticed that AIOWPSecurity_Utility_File::scan_dir_sort_date() method is only used here, but false return value is not anticipated, therefore I think the method should return an empty array instead to prevent PHP notices.
Also, it's simpler to just
asort
an array thanarsort
+array_reverse
it.