按键值从多维数组中删除重复数组

Question

我有以下数组

 Array
 (
[0] => Array
    (
        [id_scheduled_work] => 238
        [id_schedule_hours] => 1
        [id_truck] => 1
        [id_scheduled_work_details] => 209
        [work_order] => Z20160807211621

    )

[1] => Array
    (
        [id_scheduled_work] => 239
        [id_schedule_hours] => 2
        [id_truck] => 1
        [work_order] => Z20160807211621

    )
[2] => Array
    (
        [id_scheduled_work] => 240
        [id_schedule_hours] => 1
        [id_truck] => 1
        [id_scheduled_work_details] => 209
        [work_order] => A20160807211621

    )

[3] => Array
    (
        [id_scheduled_work] => 245
        [id_schedule_hours] => 2
        [id_truck] => 1
        [work_order] => A20160807211621

    )

  )

所以我想通过work_order编号删除重复的entires，所以我的最终数组应该是，我还需要重置密钥，以便它们变为0 1 ...

  Array
 (
[0] => Array
    (
        [id_scheduled_work] => 238
        [id_schedule_hours] => 1
        [id_truck] => 1
        [id_scheduled_work_details] => 209
        [work_order] => Z20160807211621

    )
[1] => Array
    (
        [id_scheduled_work] => 240
        [id_schedule_hours] => 1
        [id_truck] => 1
        [id_scheduled_work_details] => 209
        [work_order] => A20160807211621

    )

)

Answer 1

$key = array_column(array, 'work_order');

$result = array_combine($keys, array);

试试吧