我的数组看起来像这样:
Array
(
[0] => Array
(
[0] => 1
[1] => 6
[2] => 4
[3] => 5
)
[1] => Array
(
[0] => 272.05
[1] => 63.54
[2] => 544.79
[3] => 190.62
)
[2] => Array
(
[0] => 2011-03-06 14:08:19
[1] => 2011-03-06 14:29:04
[2] => 2011-03-06 14:28:39
[3] => 2011-03-06 14:29:28
)
)
我希望您能按照$myArray [1]排序。我有这个usort函数:
function sortAmount($a, $b) {
return strnatcmp($a[1], $b[1]);
}
这被称为:
usort($myArray, "sortAmount");
然而,在调用usort后,数组并没有发生改变。我想让$myArray[1]中的数字按升序排序,并且让$myArray[0]和$myArray[2]中相应的索引也随之改变。