change sql result array to wanted format in cakephp

i'm getting a array of user names doing a sql query.it's like this

Array ( 
    [0] => Array (
        [users] => Array (
            [displayname] => Mark
        )
    )
    [1] => Array ( 
        [users] => Array ( 
            [displayname] => Helan
        )
    )
    [2] => Array ( 
        [users] => Array ( 
            [displayname] => Shaun
        )
    )
    [3] => Array ( 
        [users] => Array ( 
            [displayname] => Basu
        )
    )
    [4] => Array ( 
        [users] => Array ( 
            [displayname] => Charit
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    )
    [5] => Array ( 
        [users] => Array ( 
            [displayname] => Chris
        )
    )
    [6] => Array ( 
        [users] => Array ( 
            [displayname] => Tony
        )
    )
    [7] => Array ( 
        [users] => Array ( 
            [displayname] => Sam
        )
    )
    [8] => Array ( 
        [users] => Array ( 
            [displayname] => Duck
        )
    )
    [9] => Array ( 
        [users] => Array ( 
            [displayname] => Frank
        )
    )
)

i want to recreate the array to this format

Array ( 'Mark' => 'Mark','Helan' => 'Helan' , ..........,'Frank'=>'Frank')

How can i do this?

---

$users = $this->User->find('list',array('fields'=>array('displayname','displayname')));

---

if you use the find('list') method, you could specify the fields and the result would be a simple key/value array.

Another way to do it is using the Set Object from the Core utility library. See the extract() method

Hope this helps

---

It seems that Set::extract() is what you need here, with array_combine(). Here is an example:

// $data contains your find result
$names = Set::extract('/users/displayname', $data);
$formattedData = array_combine($names, $names)

---

What you're actually asking for is Set::combine which is basically a combination of what Pierre MARTIN suggests.

$names = Set::combine($data, '{n}.users.displayname', '{n}.users.displayname');