if this work
$var0['list'] = array(
'type1' => 'val1',
'type2' => 'val2',
'type3' => 'val3'
);

is possible to have this:
$var0['list'] = array(
'type1' => 'val1',
'type2' => 'type3' => 'val2-3'
);

which is correct code ?