php - 如何通过内键对多维数组进行排序

Question

我有一个巨大的数组，我从 BattleField Bad Company 2 的 API 中提取，士兵统计数据可以作为一个多维数组提取，每个士兵都有一个内部数组，但是 API 对士兵进行排序按字母顺序命名，我想按等级对它们进行排序(这只是该士兵数组中的另一个键)。几天来我一直在努力解决这个问题，有人有什么想法吗？(即按 $arr[players][][rank]

排序数组

这是数组的一部分

Array(    [players] => Array        (            [0] => Array                (                    [name] => bigjay517                    [rank] => 29                    [rank_name] => SECOND LIEUTENANT II                    [veteran] => 0                    [score] => 979440                    [level] => 169                    [kills] => 4134                    [deaths] => 3813                    [time] => 292457.42                    [elo] => 319.297                    [form] => 1                    [date_lastupdate] => 2010-03-30T14:06:20+02:00                    [count_updates] => 13                    [general] => Array                        (                            [accuracy] => 0.332                            [dogr] => 86                            [dogt] => 166                            [elo0] => 309.104                            [elo1] => 230.849                            [games] => 384                            [goldedition] => 0                            [losses] => 161                            [sc_assault] => 146333                            [sc_award] => 567190                            [sc_bonus] => 35305                            [sc_demo] => 96961                            [sc_general] => 264700                            [sc_objective] => 54740                            [sc_recon] => 54202                            [sc_squad] => 53210                            [sc_support] => 70194                            [sc_team] => 21215                            [sc_vehicle] => 44560                            [slevel] => 0                            [spm] => 0                            [spm0] => 0                            [spm1] => 0                            [srank] => 0                            [sveteran] => 0                            [teamkills] => 67                            [udogt] => 0                            [wins] => 223                        )

Answer 1

给你。

$playergoop 是您提供的数组。

这个按子字段“排名”排序，但它是按升序排列的。如果您想要降序，可以将 > 切换为 <。

function sorter($one, $two) {
    return ($one['rank'] > $two['rank']);
}

usort($playergoop['players'], sorter);