I can't get this to work, can anyone help?

<input type="hidden" name="hiddenField" value="<?php echo date ("Y-m-d", mktime (0,0,0,12,12,1968)); ?>">

When I change the year to above 1970, everything works fine, I don't understand this.

But, in the end I'd like to get the day, month and year from my form by using 3 comboboxes (edtDay, edtMonth, edtYear).
How would I include these values into the mktime() instruction?

Thanks.

Refer to

www.udzone.com/forum/topic.asp?TOPIC_ID=9095&FORUM_ID=67&CAT_ID=5&Topic_Title=Inserting+date&Forum_Title=PHP

Keith Slater