How to implode array? [требует правки]

I have array:

$array = array('431'=>'931','430'=>'904');
$array2 = array('433'=>'902','102'=>'302');
$array3 = array('101'=>'304','405'=>'103');

I wan`t implode all arrays, to one array:

$new = array('0'=>'o=931 and o=902 and o=302 and o=304 and o=103','1'=>'o = 904 and o=902 and o=302 and o=304 and o=103');