Array sorted by Time

There are the following arrays I want to get the latest six data codes in descending order of time:

Array ([0] = = Array ([id] = + bayi [title] + scatter loudly [uid] = 166  [Created_time] = 2015-11-25 17:15:27 [1] = 1) [1] = = Array ([id] [title] + Tang Gate question title one [uid] = 166 [Created_time] = 2015-11-20 14:49:5            7 [1] = 1) [2] = = Array ([id] = [title] = = Test [UID] = 126 [Created_time] = 2015-12-10 14:49:57 [2] = 2) [3] = = Array ([id] = [title] = + 123 [UID] = 122 [Created_time]            = 2015-11-16 15:52:19 [1] = 1) [4] = = Array ([id] + 77         [title] = DSFASD [UID] = 156 [Created_time] = 2015-11-09 11:04:24 [1] = 1 ) [5] = ARray ([id] = [title] = CE [UID] = 156 [Created_time] =& Gt 2015-11-04 16:44:34 [1] = 1) [6] = = Array ([id] = [title] =    > Test [UID] = 156 [Created_time] = 2015-11-18 14:28:44 [1] = 1) [7] = = Array ([id] = [title] = + No Delete-1 [uid] = = 126 [cr             Eated_time] = 2015-07-02 13:50:44 [2] = 2) [8] = = Array ([id] = 20            [title] + did not delete-1 [uid] = 126 [Created_time] = 2015-07-02 13:50:44 [2] = 2) [9] = = Array ([id] = [title] + not deleted-1 [UID]             = 126 [Created_time] = 2015-07-02 13:50:44 [2] = 2) [ten] = = Array ( [ID] =&GT            [title] = + did not delete-1 [uid] = 126 [Created_time] = 2015-07-02 13:50:44            [2] = 2) [one] = = Array ([id] [title] + 1 People sprinkle Yui Day sports norms local shipping party scatter place [UID] = 3 [Created_time] = 2015-07-02 13:50:44 [2] = 2))

Reply to discussion (solution)

foreach ($arr as $v) $r [] = $v [' Created_time '];
Array_multisort ($r, Sort_desc, $arr);
$ar = Array_slice ($arr, 0, 6);

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