我需要通过变量'i_lastname'对这个多维php对象进行排序。按值排序php多维数组
我尝试了大部分usort和ksort都无济于事的例子。大多数例子都是这样的,但不适合我。
function sort_by_name($a, $b)
{
return ($a->i_lastname < $b->i_lastname ? -1 : 1);
}
usort($cards, 'sort_by_name');
这里是对象结构。
谢谢。
Array
(
[0] => Array
(
[officer_id] => 4D5DEF60
[card_id] => 5
[general] => Array
(
[0] => Array
(
[i_officer_id] => 4D5DEF60
[i_officer_name] =>
[i_datetime] => 2012-06-12 13:47:00
[i_location] => 17 Rue de Neuch, Yvette, France
[i_lat] => 48.6955
[i_lon] => 2.21458
[i_reason] => DUI
)
)
[subject] => Array
(
[0] => Array
(
[subject_id] => 6
[i_lastname] => Toro
[i_firstname] => Benicio
)
[1] => Array
(
[subject_id] => 9
[i_lastname] => Limon
[i_firstname] => Pedro
)
)
[vehicle] => Array
(
)
)
[1] => Array
(
[officer_id] => 4D5DEF60
[card_id] => 2
[general] => Array
(
[0] => Array
(
[i_officer_id] => 0f3b45a3
[i_officer_name] =>
[i_datetime] => 2012-06-06 19:42:00
[i_location] => 10231 Yankee St, Miami, USA
[i_lat] => 39.5952
[i_lon] => -84.2003
[i_reason] => Speeding
)
)
[subject] => Array
(
[0] => Array
(
[subject_id] => 3
[i_lastname] => Doe
[i_firstname] => John
)
[0] => Array
(
[subject_id] => 15
[i_lastname] => Doe
[i_firstname] => Jane
)
)
[vehicle] => Array
(
)
)
)
你试过usort吗?没有尝试过自己,但我看到它建议一次:) –
如果你同意擦我的警察记录,我可以发送codez :) – goat
所以我想你正在尝试排序'subject'子阵列 - 什么是你传递给'usort()'?整个结构还是子阵列? – DaveRandom