问题
I don't know how to explain this correctly but just some sample for you guys so that you can really get what Im trying to say.
Today is April 09, 2010
7 days from now is April 16,2010
Im looking for a php code, which can give me the exact date giving the number of days interval prior to the current date.
I've been looking for a thread which can solve or even give a hint on how to solve this one but I found none.
回答1:
If you are using PHP >= 5.2, I strongly suggest you use the new DateTime object, which makes working with dates a lot easier:
<?php
$date = new DateTime("2006-12-12");
$date->modify("+7 day");
echo $date->format("Y-m-d");
?>
回答2:
Take a look here - http://php.net/manual/en/function.strtotime.php
<?php
// This is what you need for future date from now.
echo date('Y-m-d H:i:s', strtotime("+7 day"));
// This is what you need for future date from specific date.
echo date('Y-m-d H:i:s', strtotime('01/01/2010 +7 day'));
?>
回答3:
The accepted answer is not wrong but not the best solution:
The DateTime class takes an optional string in the constructor, which can define the same logic as the modify method.
<?php
$date = new DateTime("+7 day");
For example:
<?php
namespace DateTimeExample;
$now = new \DateTime("now");
$inOneWeek = new \DateTime("+7 day");
printf("Now it's the %s", $now->format('Y-m-d'));
printf("In one week it's the %s", $inOneWeek->format('Y-m-d'));
For a list of available relative formats (for the DateTime constructor) take a look at http://php.net/manual/de/datetime.formats.relative.php
回答4:
You will have to look into strtotime(). I'd imagine your final code would look something like this:
$future_date = "April 16,2010";
$seconds = strtotime($future_date) - time();
$days = $seconds /(60 * 60* 24);
echo $days; //Returns "6.0212962962963"
回答5:
If you are using PHP >= 5.3, this could be an option.
<?php
$date = new DateTime( "2006-12-12" );
$date->add( new DateInterval( "P7D" ) );
?>
回答6:
You can use mktime with date. (http://php.net/manual/en/function.date.php)
Date gives you the current date. This is better than simply adding/subtracting to a timestamp since it can take into account daylight savings time.
<?php
# this gets you 7 days earlier than the current date
$lastWeek = mktime(0, 0, 0, date("m") , date("d")-7, date("Y"));
# now pretty-print it out (eg, prints April 2, 2010.)
echo date("F j, Y.", $lastWeek), "\n";
?>
来源：https://stackoverflow.com/questions/2605446/php-get-future-date-time