On 10 Apr 2004 Brian Dunning wrote:
> Check this out: I'm returning a list of the last 30 days, looping
> through i, subtracting it from $end_date where $end_date is 2004-04-10
> 00:00:00. I'm just trying to derive a timestamp $check_date for each
> iteration, like 1081321200. Here's the code within the loop:
>
> $check_date = mktime(0, 0, 0, substr($end_date, 5, 2),
> substr($end_date, 8, 2) - $i, substr($end_date, 0, 4), -1);
>
> Note that this works PERFECTLY for every date, and always has. Except
> for one particular day. When $end_date - $i is supposed to be April 4,
> the timestamp returned is -7262, which it thinks is 12/31/1969.
I don't see the same problem. This code:
<?php
$end_date = "2004-04-10";
for ($i = 1; $i <= 30; $i++) {
$check_date = mktime(0, 0, 0, substr($end_date, 5, 2),
substr($end_date, 8, 2) - $i, substr($end_date, 0, 4), -1);
$strdate = date("m-d-Y", $check_date);
print("$check_date = $strdate\n");
}
?>
Produces this output:
1081483200 = 04-09-2004
1081396800 = 04-08-2004
1081310400 = 04-07-2004
1081224000 = 04-06-2004
1081137600 = 04-05-2004
1081054800 = 04-04-2004
1080968400 = 04-03-2004
1080882000 = 04-02-2004
1080795600 = 04-01-2004
1080709200 = 03-31-2004
1080622800 = 03-30-2004
1080536400 = 03-29-2004
1080450000 = 03-28-2004
1080363600 = 03-27-2004
1080277200 = 03-26-2004
1080190800 = 03-25-2004
1080104400 = 03-24-2004
1080018000 = 03-23-2004
1079931600 = 03-22-2004
1079845200 = 03-21-2004
1079758800 = 03-20-2004
1079672400 = 03-19-2004
1079586000 = 03-18-2004
1079499600 = 03-17-2004
1079413200 = 03-16-2004
1079326800 = 03-15-2004
1079240400 = 03-14-2004
1079154000 = 03-13-2004
1079067600 = 03-12-2004
1078981200 = 03-11-2004
Tested on PHP 4.3.4 on Win2K.
--
Tom
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