php date compare

omarswan · 10-02-2002, 05:51 AM

Hi guys,
I'm working on a web project using php which has an
application form, and I need some help with
comparing dates.

Let's assume that I already have a function that
get the last date and time a user of a specific
ip address made a post. I basically want to limit
a user (based on their ip) to one (1) post
per day (24 hrs) or once every two days.

I just need help in creating a function
that can compare the two dates.

example

function can_post($lastPost, $now) {
'...
}

It would also be nice if I could tell when
is the next time that the can post.

thanks!

Marty_Mandrake · 10-02-2002, 07:34 AM

If both dates are in a unix time stamp form then, you can do this.

PHP Code:


			
function can_post($lastPost, $now) {

     $seconds_in_a_day = 24*60*60;

     $seconds_since_last_post = $now - $lastPost;

     If ($seconds_since_last_post < $seconds_in_a_day) {

          return 0;

     } else {

          return 1;

     }

}

This function will return a value of 0 if the person cannot post and a function of one if they can.

omarswan · 10-02-2002, 05:41 PM

Thanks Marty