RE: [PHP] subtracting time from date and time
| From: | Richard Kurth | Date: | Mon, 18 Jun 2007 18:57:49 +0000 |
| Subject: | RE: [PHP] subtracting time from date and time | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-257330@lists.php.net to get a copy of this message | ||
> -----Original Message-----
> From: Chris Boget [mailto:chris.boget@wild.net]
> Sent: Monday, June 18, 2007 10:55 AM
> To: Brad Bonkoski; Richard Kurth
> Cc: php-general@lists.php.net
> Subject: Re: [PHP] subtracting time from date and time
>
> > Something like this will get it into a time stamp...and
> then you can
> > do your calculations with ease, and reformat...
> > <?php
> > $str = "20070617T193500";
> > list($date, $time) = explode("T",$str); ?>
>
> Even easier:
>
> $timestamp = strtotime( $str );
> http://us2.php.net/manual/en/function.strtotime.php
>
> $oneMinute = 60; // seconds
> $oneHour = $oneMinute * 60;
> $oneDay = $oneHour * 24;
>
> echo '5 minutes ago: ' . date( 'm/d/Y h:i:s', $timestamp - (
> $oneMinute *
> 5 ));
> echo '5 hours ago: ' . date( 'm/d/Y h:i:s', $timestamp - (
> $oneHour * 5 )); echo '5 days ago: ' . date( 'm/d/Y h:i:s',
> $timestamp - ( $oneDay * 5 ));
This works great tell you get to 8 hours ago it shows the correct time but
it does not change the date to the day before. 8 hours ago should be
06/16/2007 11:35:00 but what it shows is 06/17/2007 11:35:00
$str = "20070617T193500";
$timestamp = strtotime( $str );
$oneMinute = 60; // seconds
$oneHour = $oneMinute * 60;
$oneDay = $oneHour * 24;
echo 'time: ' . date( 'm/d/Y h:i:s', $timestamp );
echo"<br>";
echo '5 minutes ago: ' . date( 'm/d/Y h:i:s', $timestamp - ( $oneMinute *5
));
echo"<br>";
echo '15 minutes ago: ' . date( 'm/d/Y h:i:s', $timestamp - ( $oneMinute *15
));
echo"<br>";
echo '30 minutes ago: ' . date( 'm/d/Y h:i:s', $timestamp - ( $oneMinute *30
));
echo"<br>";
echo '1 hours ago: ' . date( 'm/d/Y h:i:s', $timestamp - ( $oneHour * 1 ));
echo"<br>";
echo '2 hours ago: ' . date( 'm/d/Y h:i:s', $timestamp - ( $oneHour * 2 ));
echo"<br>";
echo '5 hours ago: ' . date( 'm/d/Y h:i:s', $timestamp - ( $oneHour * 5 ));
echo"<br>";
echo '7 hours ago: ' . date( 'm/d/Y h:i:s', $timestamp - ( $oneHour * 7 ));
echo"<br>";
echo '8 hours ago: ' . date( 'm/d/Y h:i:s', $timestamp - ( $oneHour * 8));