在php中添加十进制值的周数

Question

I am trying to add weeks in decimal values like 1.5, 2.5 to date through strtotime() function. But its not giving correct result. I am using it like:

$start_date = "2015-01-01";

$date = strtotime(date("Y-m-d", strtotime($start_date)) . " +3.5 weeks");

$date = date("Y-m-d",$date);

echo $date;

And its giving 2015-02-04 as output. When added non decimal values like:

$date = strtotime(date("Y-m-d", strtotime($start_date)) . " +3 weeks");

It gives perfect results.

Any thought on it?

Answer 1

$date = '2015-01-01';

$weeks = "2,3,4,4.5";

foreach(explode(",", $weeks) as $week) {
 print $week."
";
 $hours = $week * 24 * 7;
 print $hours."
";
 print date("Y-m-d", strtotime("{$date} +{$hours} hours"))."
";
}