PHP registering to WWW-page

I'm doing a small forum on the web by PHP. I was wondering how to do the registration. Namely, I decided to ask user email and then sen开发者_Python百科 her/him mail that contains a link that should be pressed at most two days after the server sent a mail. But it is possible for server to see what time the link was clicked? Or is there any better methods to do the registration?

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You can see which time the link was clicked using the date or time functions in PHP.

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Once the link is clicked you can use php function date or time to log the current date.

If you also log the registration date, you can easily create a function which checks if the confirmdate is expired or if it's not.

This is an example how date comparison is done:

<?php
$date1 = "2007-10-25";

$date2 = time();
$dateArr = explode("-",$date1);

$date1Int = mktime(0,0,0,$dateArr[1],$dateArr[2],$dateArr[0]) ;

echo "$date1Int compare to $date2 difference is ".($date1Int-$date2);
?>