[RESOLVED] $ary['x']= array('a'=>'y')... VS $ary['x']['a']= y...

[kakablack]

Hi,
What is difference/better between:

$ary['x']= array('a'=>11111, 'b'=>22222, 'c'=>33333... );

VS

$ary['x']['a']= 11111;
$ary['x']['b']= 22222;
$ary['x']['c']= 33333;
... 

?
Thanks for help.