php - Set some array value as key of an array -

i have tried line of code display array:

foreach($users_array $value){         echo "<pre>";     print_r($value);                      }  

which display kind of array.

array (     [auto_id] => 45     [id] => 20151116     [name] => peter 2     [department] =>      [position] =>      [rate] => 300     [date_added] => 2017-07-26 09:31:44 ) array (     [auto_id] => 80     [id] => 20160410     [name] => john 2     [department] =>      [position] =>      [rate] => 400     [date_added] => 2017-07-26 09:31:48 ) 

now wanted make id of employee key of array , make them 1 multi-dimensional array.

example output should this:

array (     [20151116] => array     (         [auto_id] => 45         [id] => 20151116         [name] => peter 2         [department] =>          [position] =>          [rate] => 300         [date_added] => 2017-07-26 09:31:44     )      [20160410] => array     (         [auto_id] => 80         [id] => 20160410         [name] => john 2         [department] =>          [position] =>          [rate] => 400         [date_added] => 2017-07-26 09:31:48     )  ) 

any appreciated. thank you.

here need change

  $final = array();   foreach($users_array $value){           $final[$value["id"]] = $value;                    }       echo "<pre>";       print_r($final);