What should the CSV date look like
to bring it correctly into its corresponding
Mysql field, which is formatted as a 10-digit integer field?

Thank you.

if your mysql field is an int(10), then don't even bother...
Drop your field, and recreate it as timestamp.

Then, you can fetch it with nearly any syntax to the db, and it shoul be able to cope with it.
Don't trust what a select shows you, a date field is totally different of an int field, and is specially designed to make life easier when dealing with dates.
Use it...
http://dev.mysql.com/doc/refman/5.0/...functions.html

mysql> select timestamp('20071215235026');
+-----------------------------+
| timestamp('20071215235026') |
+-----------------------------+
| 2007-12-15 23:50:26         | 
+-----------------------------+
1 row in set (0.00 sec)

tripy - Having once read a superb book (by the Sitepoint people)
about dates (using PHP, Mysql and javascript), I already have a whole lot
of code resting on this 10-digit integer Mysql format.
It really proved (for me) to be the best formatting policy
with regard the aforementioned languages.

Ok, as you think. I understand that having an heavy code base is a major blocker to change it.
But I ,personally, as a DBA and professional SQL developer think you go the wrong way, trying to handle your date processing in php to send it to mysql.
You have an highly optimized and low level engine that is all ready to handle them for you, and I think it makes perfect sense to use it.
It can ease your computations a lot by using built-in functions.
PHP simply isn't adapted to that task when you care about performances.

And yes, I did 11 years (since PHP-FI/PHP 2.0) of PHP development as senior developer at the same time I achieved my DBA formation.
I don't say that because I don't know PHP.
I know it suffisantly to know when I should stop using it.

I simply found sad that today developers don't try to use the right tool for the right task, and try to do everything in the same place, regardless of performances and resources conservatism.

That being said, it will just let you do the php date() calls to send to the db the integer you need.
I don't see what your question is about....