I am not sure if it is a bug or a feature but if I try the following code$aTest = array( '3 ' => array('a' => '3a',
'b' => '3b'),
'a' => array('a' => 'aa',
'b' => 'ab'),
'5 ' => array('a' => '5a',
'b' => '5b') );
printArr($aTest);
array_multisort(array_keys($aTest)...