如何在symfony2中使用mysql_num

I know its a very silly question but having issues with symfony and doctrine createQuery..

I need an array result like this way to feed my chart app:

array (size=6)
0 => 
array (size=2)
  0 => string 'Firefox' (length=7)
  1 => float 45
1 => 
array (size=2)
  0 => string 'IE' (length=2)
  1 => float 26.8
2 => 
array (size=2)
  0 => string 'Chrome' (length=6)
  1 => float 12.8

and im using this query:

$query = $this->getEntityManager()->createQuery(
     'SELECT c.status, COUNT (c.status) FROM MyAppBundle:Content c GROUP BY c.status '
 );

 $results = $query->getArrayResult();

but its returning like this:

array (size=4)
0 => 
array (size=2)
  'status' => string 'Converted' (length=9)
  1 => string '4359' (length=4)
1 => 
array (size=2)
  'status' => string 'Received Q' (length=10)
  1 => string '277' (length=3)
2 => 
array (size=2)
  'status' => string 'Signed' (length=6)
  1 => string '1' (length=1)
3 => 
array (size=2)
  'status' => string 'Uploaded' (length=8)
  1 => string '1' (length=1)

Now in regular php and mysql:

while($row = mysql_fetch_array($query,MYSQL_NUM)){
      $results[] = $row ;
}

can return the array result as expected but my q is how can i do it with symfony2 and doctrine way?

You can give your arrays numeric indexes by using array_values

foreach($results as &$result) {
    $result = array_values($result);
}