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Dominik Schilling (ocean90) ad25902a65 General: Introduce a wp_list_sort() helper function, v2.
In addition to `wp_list_filter()` for filtering a list of objects, and `wp_list_pluck()` for plucking a certain field out of each object in a list, this new function can be used for sorting a list of objects by specific fields. These functions are now all contained within the new `WP_List_Util()` class and `wp_list_sort()` is used in various parts of core for sorting lists.

This was previously committed in [38859] but got reverted in [38862] and [38863]. To fix the previous issues, `wp_list_sort()` supports now an additional argument to preserve array keys via `uasort()`.

Props flixos90, DrewAPicture, jorbin.
Fixes #37128.

git-svn-id: https://develop.svn.wordpress.org/trunk@38928 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-25 21:25:25 +00:00
src General: Introduce a wp_list_sort() helper function, v2. 2016-10-25 21:25:25 +00:00
tests General: Introduce a wp_list_sort() helper function, v2. 2016-10-25 21:25:25 +00:00
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