排序关联数组由两个值PHP [英] sort associative array by two values PHP

问题描述

我有一个数组一些预订数据，他们已经在排序[英]，但我也希望通过[AMPM]排序，所以每个组[ENG]为[AMPM]排序。有谁知道如何在PHP中做到这一点？

 阵列
（
    [XML] =＆GT;排列
        （
            [预订] =＆GT;排列
                （
                    [0] =＆GT;排列
                    （                        [日期] =＆GT; 29/12/10
                        [英] =＆GT; ALS
                        [AMPM] =＆GT;上午
                        [时间] =＆GT; 2.00
                        [类型] = GT;小号
                        [SEQ] =→2
                        [时间] =＆GT; 0                    ）                [1] =＆GT;排列
                    （                        [日期] =＆GT; 29/12/10
                        [英] =＆GT; BDS
                        [AMPM] =＆GT;下午
                        [时间] =＆GT; 2.30
                        [类型] = GT;小号
                        [SEQ] =＆GT; 3
                        [时间] =＆GT; 0                    ）
 

解决方案

您可以使用usort：的 http://www.php.net/manual/en/function.usort.php

所以，当英从两个项目是不同的，你可以返回1或-1相应的，但是如果英都是一样的，那么你可以比较 AMPM 返回0，1或-1相应。

i have some booking data in an array, they are already sorted by [eng], but I also want to sort by [ampm], so each group of [eng] is sorted by [ampm]. Does anybody know how to accomplish this in php?

    Array
(
    [xml] => Array
        (
            [booking] => Array
                (
                    [0] => Array
                    (

                        [date] => 29/12/10
                        [eng] => ALS
                        [ampm] => AM
                        [time] => 2.00
                        [type] => S
                        [seq] =>2
                        [duration] => 0

                    )

                [1] => Array
                    (

                        [date] => 29/12/10
                        [eng] => BDS
                        [ampm] => PM
                        [time] =>       2.30
                        [type] => S
                        [seq] =>       3
                        [duration] =>       0

                    )

解决方案

you can use usort: http://www.php.net/manual/en/function.usort.php

so that when eng from the two items are different, you can return 1 or -1 accordingly, but if eng are the same, then you can compare ampm to return 0, 1, or -1 accordingly.

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