如何将包含值的对象数组转换为由该值索引的数组？

Question

I have array structured like this:

Array
(
    [0] => stdClass Object
    (
            [ID] => 277
            [post_author] => 1
            [post_date] => 2011-09-02 08:34:03
            [post_date_gmt] => 2011-09-02 08:34:03
            [post_content] => <div class="sol_topcont">
            [menu_order] => 103
            [post_type] => page
            [post_mime_type] => 
            [comment_count] => 0
            [filter] => raw
    )

    [1] => stdClass Object
    (
            [ID] => 275
            [post_author] => 1
            [post_date] => 2011-09-02 08:32:36
            [post_date_gmt] => 2011-09-02 08:32:36
            [post_content] => <div class="sol_topcont1">
            [menu_order] => 100
            [post_type] => page
            [post_mime_type] => 
            [comment_count] => 0
            [filter] => raw
    )

    [2] => stdClass Object
    (
            [ID] => 280
            [post_author] => 1
            [post_date] => 2011-09-02 08:35:24
            [post_date_gmt] => 2011-09-02 08:35:24
            [post_content] => <div class="sol_topcont">
            [menu_order] => 102
            [post_type] => page
            [post_mime_type] => 
            [comment_count] => 0
            [filter] => raw
    )

    [3] => stdClass Object
    (
            [ID] => 282
            [post_author] => 1
            [post_date] => 2011-09-02 08:36:31
            [post_date_gmt] => 2011-09-02 08:36:31
            [post_content] => <div class="sol_topcont">
            [menu_order] => 101
            [post_type] => page
            [post_mime_type] => 
            [comment_count] => 0
            [filter] => raw
    )

)

I need to sort this array using the ['menu_order'] key value. How do I convert the above array into one like this:

Array
(

    [100] => stdClass Object
    (
        [ID] => 275
        [post_author] => 1
        [post_date] => 2011-09-02 08:32:36
        [post_date_gmt] => 2011-09-02 08:32:36
        [post_content] => <div class="sol_topcont1">
        [menu_order] => 100
        [post_type] => page
        [post_mime_type] => 
        [comment_count] => 0
        [filter] => raw
    )



    [101] => stdClass Object
    (
        [ID] => 282
        [post_author] => 1
        [post_date] => 2011-09-02 08:36:31
        [post_date_gmt] => 2011-09-02 08:36:31
        [post_content] => <div class="sol_topcont">
                    [menu_order] => 101
        [post_type] => page
        [post_mime_type] => 
        [comment_count] => 0
        [filter] => raw
    )
    [102] => stdClass Object
    (
        [ID] => 280
        [post_author] => 1
        [post_date] => 2011-09-02 08:35:24
        [post_date_gmt] => 2011-09-02 08:35:24
        [post_content] => <div class="sol_topcont">
                    [menu_order] => 102
        [post_type] => page
        [post_mime_type] => 
        [comment_count] => 0
        [filter] => raw
    )

    [103] => stdClass Object
    (
        [ID] => 277
        [post_author] => 1
        [post_date] => 2011-09-02 08:34:03
        [post_date_gmt] => 2011-09-02 08:34:03
        [post_content] => <div class="sol_topcont">
                    [menu_order] => 103
        [post_type] => page
        [post_mime_type] => 
        [comment_count] => 0
        [filter] => raw
    )
)

Answer 1

I got an Answer

    foreach($whyapptivo_sub_pages as $pages)
    {
            $key = $pages->menu_order;
            $final[$key] = $pages;
            ksort($final);
        }
   foreach($final as $page)
    {
             ........
          }