RE: [PHP] Date Manipulation

In addition to Matthew's response... Strtotime() and mktime() both return a serial date. That's the "1101945775" number you got. To get this back to a YYYYmmdd format that you seem to be trying to do with mktime(), you want to use date() as Matthew suggested. Again, I think examples help more than "RTFM": date("Ymd",strtotime("now")); mktime() and strtotime() produce the same output which is not a human-readable date format. So basically, in your example below, you told it that you wanted: The serial date (mktime()) of hour "Ymd" (evaluates as 0 I believe), minute "1101945775", with seconds, month, day and year all empty. I think the leaving them empty is ok since they're optional from right to left, and the excessive number of minutes probably wouldn't be a big deal (unless it goes past the maximum date rate, which looks like what it's doing). Let's do a quick calc: Looks like the max number that mktime() can produce is: 2147483647 This is 1/18/2038 22:14:07 If you take your serial date "1101945775" and pipe it into the minutes section of mktime(), it'll produce that number times 60 (60 seconds in a minute) and try to get that date. This produces a number: 66116746500 Significantly bigger than the max serial date for Windows mentioned above. Long answer to maybe help you understand how it all works. Btw: The serial date is the number of seconds since the beginning of the "Unix Epoch" (# of secs since January 1, 1970 that is... Hey, time's gotta start somewhere eh?) Hope this helps clarify mktime(), strtotime() and date(). -TG > -----Original Message----- > From: Christopher Weaver [mailto:booktues@yahoo.com] > Sent: Wednesday, December 01, 2004 7:13 PM > To: php-general@lists.php.net > Subject: Re: [PHP] Date Manipulation > > > This code: > > echo strtotime("now"); > echo mktime("Ymd", strtotime("now")); > > is producing this result: > > 1101945775 > Warning: mktime(): Windows does not support negative values for this > function ... > -1 > > What am I doing wrong? > > Thanks again.