On Mon, 2010-06-07 at 16:51 -0400, David Mehler wrote:
> Hello,
> I've got a form with three fields that are not required for proper
> completion of it, ending month, day, year fields. If a user enters
> nothing no problem, but if those form fields are entered I need them
> validated. They have to be in the correct format YYYY-MM-DD date
> format and that value also has to be greater than the starting date
> validated previously. I've got some not working code.
> Thanks.
> Dave.
>
> // if an ending date field was entered validate that
> // also must be greater than the starting date values
> if(!empty($_POST['month1']) && !empty($_POST['day1']) &&
> !empty($_POST['year1']) {
> $month1=$_POST['month1'];
> $day1=$_POST['day1'];
> $year1=$_POST['year1'];
> $date_value1="$year1-$month1-$day1";
> }
> if(!checkdate($month1,$day1,$year1)) {
> echo "Invalid Date.\n";
> } else {
> echo "Entered Date is correct.\n";
> }
> }
> if(!checkdate($month1,$day1,$year1)) > $date_value {
> echo "Invalid Date.\n";
> } else {
> echo "Entered Date is correct.\n";
> }
>
strtotime() can create a timestamp from a date string that you can use
to compare two dates, and the strings can be put together with the
values from the variables. I'm assuming that your form is using a
combination of select lists to create the date, so you should be able to
just grab the integer values to test they are within valid ranges for a
date.
Thanks,
Ash
http://www.ashleysheridan.co.uk
