1.
Array
(

[ob_no] => Array
    (
        [0] => 201710118
        [1] => 201709118
        [2] => 201708118
        [3] => 201707118
        [4] => 201706118
        [5] => 201705118
        [6] => 201704118
        [7] => 201703118
        [8] => 201702118
        [9] => 201701118
        [10] => 20171036
    )

[ob_store_id] => Array
    (
        [0] => 118
        [1] => 118
        [2] => 118
        [3] => 118
        [4] => 118
        [5] => 118
        [6] => 118
        [7] => 118
        [8] => 118
        [9] => 118
        [10] => 36
    )

[ob_start_date] => Array
    (
        [0] => 1506787200
        [1] => 1504195200
        [2] => 1501516800
        [3] => 1498838400
        [4] => 1496246400
        [5] => 1493568000
        [6] => 1490976000
        [7] => 1488297600
        [8] => 1485878400
        [9] => 1483200000
        [10] => 1506787200
    )

[ob_end_date] => Array
    (
        [0] => 1509465599
        [1] => 1506787199
        [2] => 1504195199
        [3] => 1501516799
        [4] => 1498838399
        [5] => 1496246399
        [6] => 1493567999
        [7] => 1490975999
        [8] => 1488297599
        [9] => 1485878399
        [10] => 1509465599
    )

[ob_comtent] => Array
    (
        [0] => 
        [1] => 
        [2] => 
        [3] => 
        [4] => 
        [5] => 
        [6] => 
        [7] => 
        [8] => 
        [9] => 
        [10] => 
    )

[ob_time] => 2018-01-16

)
2.
Array
(

[0] => Array
    (
        [ob_no] => 201710118
        [ob_store_id] => 118
        [ob_start_date] => 1506787200
        [ob_end_date] => 1509465599
        [ob_comtent] => 
    )

[1] => Array
    (
        [ob_no] => 201709118
        [ob_store_id] => 118
        [ob_start_date] => 1504195200
        [ob_end_date] => 1506787199
        [ob_comtent] => 
    )

[2] => Array
    (
        [ob_no] => 201708118
        [ob_store_id] => 118
        [ob_start_date] => 1501516800
        [ob_end_date] => 1504195199
        [ob_comtent] => 
    )

[3] => Array
    (
        [ob_no] => 201707118
        [ob_store_id] => 118
        [ob_start_date] => 1498838400
        [ob_end_date] => 1501516799
        [ob_comtent] => 
    )

[4] => Array
    (
        [ob_no] => 201706118
        [ob_store_id] => 118
        [ob_start_date] => 1496246400
        [ob_end_date] => 1498838399
        [ob_comtent] => 
    )

[5] => Array
    (
        [ob_no] => 201705118
        [ob_store_id] => 118
        [ob_start_date] => 1493568000
        [ob_end_date] => 1496246399
        [ob_comtent] => 
    )

[6] => Array
    (
        [ob_no] => 201704118
        [ob_store_id] => 118
        [ob_start_date] => 1490976000
        [ob_end_date] => 1493567999
        [ob_comtent] => 
    )

[7] => Array
    (
        [ob_no] => 201703118
        [ob_store_id] => 118
        [ob_start_date] => 1488297600
        [ob_end_date] => 1490975999
        [ob_comtent] => 
    )

[8] => Array
    (
        [ob_no] => 201702118
        [ob_store_id] => 118
        [ob_start_date] => 1485878400
        [ob_end_date] => 1488297599
        [ob_comtent] => 
    )

[9] => Array
    (
        [ob_no] => 201701118
        [ob_store_id] => 118
        [ob_start_date] => 1483200000
        [ob_end_date] => 1485878399
        [ob_comtent] => 
    )

[10] => Array
    (
        [ob_no] => 20171036
        [ob_store_id] => 36
        [ob_start_date] => 1506787200
        [ob_end_date] => 1509465599
        [ob_comtent] => 
    )

)

怎么把数组一转化为数组二 我用的是foreach每个一维数组
如下

foreach($_POST['ob_no'] as $k_no => &$v_no){

        $finish_ob_all[$k_no]['ob_no'] = $v_no;
    }
  把值付给2维数组 但是效率不怎么样   有没有更好的方法  求大神指点。