Hi,
excuse for my english.

The problem is little.
The function CHECKDATE want 3 INT parameters (int checkdate(int month, int day, int year)).
I use PHP Apache module and PHP interpreter with a PostgreSQL interface.
If I use a day value equal 08 or 09 the function have problem.

The examples:
------------------------------------------
<?php
if (checkdate(02,09,1999))
   echo "VALID";
else
   echo "NOT VALID";
?>
-------------------------------------------
The result is NOT VALID!

If I use the quotation mark the result is right: 
-------------------------------------------
<?php
if (checkdate(02,"09",1999))
   echo "VALID";
else
   echo "NOT VALID";
?>
--------------------------------------------
The result is VALID.

If I remove the 0 before the 8 or 9 the result is right : 
-------------------------------------------
<?php
if (checkdate(02,9,1999))
   echo "VALID";
else
   echo "NOT VALID";
?>
--------------------------------------------
The result is VALID.

I tried this examples on PHP v.3.0.6 and PHP v.3.0.12 with the same result.

Thank for your work.

Yours sincerely.

Angelo CONFLITTI.