Date comparison

[bob0209]

iam kinda new to PHP, lucky to have this site.

i have a problem, iam getting the date from the user in a text item and writing to a text file in the format dd-mm-yy(18-11-02)

then when i open a page iam reading the date from the text file and stroing into a vaiable $mydate and then iam comparing with Systemdate inthe same format that is $sysdate =date("d-m-y")
now the problem starts

i want to see if $mydate > $sysdate the $mydate is in in string string format how do i compare this can some one help with the code.

advance thanks

BOB

[herve]

Hi,

you need to convert your two dates to "timestamp"
(basically a number of seconds between 1/1/1970 and
your date) , and then you have 2 integers numbers
you can easily compare.

Look for the function gmmktime() to generate the timestamp
of your own date ; and the function time() to get the timestamp
of the current date/time.

more info here :

http://www.php.net/manual/en/function.gmmktime.php

and here

http://www.php.net/manual/en/function.time.php

Hervé.