>>To solve it, the easiest approach is to open the default template and set the default spacing as 0 to the paragraph style applied to the list (Normal style as usual).
This is not an acceptable solution. I do not want to remove the extra space for normal paragraphs (the Normal style), only for lists. Also, when I open the created docx in MSWord and add another list, there is no extra space between the list items. Likewise, if I select the list brought in by phpdocx, remove the <list> formatting, and reapply the <list> formatting, there is no extra space between the items. Something is happening in phpdocx when it renders the <ul>.
So apparently I do need a custom list style in order to render <ul>s without the extra line. I would like to know what that custom style should be.
Thanks.