I'm trying to sort an array from a database. I've trimmed down the fields to make it easier to read:
["id"]=> string(4) "3214"
["prep_file"]=> string(16) "Frontispiece.jpg"
["chapter"]=> string(0) ""
["position"]=> string(0) ""
["strippedfile"]=> string(12) "Frontispiece"
}
[1]=> array(21) {
["id"]=> string(4) "3213"
["prep_file"]=> string(8) "5_21.jpg"
["chapter"]=> string(0) ""
["position"]=> string(0) ""
["strippedfile"]=> string(4) "5_21"
}
[1]=> array(21) {
["id"]=> string(4) "3214"
["prep_file"]=> string(8) "5_22.jpg"
["chapter"]=> string(1) "1"
["position"]=> string(0) ""
["strippedfile"]=> string(4) "5_22"
}
I would like to sort the array so that chapter is sorted ascending, then position is sorted ascending, finally strippedfile is sorted naturally.
Unfortunately, I can't seem to do this with array_multisort, it looks like I do:
array_multisort($array['chapter'], SORT_ASC, SORT_STRING, $array['position'], SORT_ASC, SORT_STRING, $array['strippedfile'], SORT_ASC, SORT_NATURAL)
but that doesn't work.
array_multisort(array_column($filter_arr, 'Route'), array_column($filter_arr, 'deviceName'), SORT_ASC, array_column($filter_arr, 'startTime'), SORT_ASC, $filter_arr);
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