$myList = array('item 1',
'item 2',
array('subitem 2_1',
'subitem 2_2'),
'item 3',
array('subitem 3_1',
'subitem 3_2',
array('sub_subitem 3_2_1',
'sub_subitem 3_2_1')),
'item 4');
$wf->addList($myList, 4);
Output:
the subitem always restarts the numbering of 1
1. item 1
2. item 2
1. subitem 2_1
2. subitem 2_2
3. item 3
1. subitem 3_1
2. subitem 3_2
1. sub_subitem 3_2_1
2. sub_subitem 3_2_1
4. item 4