PHP calculates the two date difference days method, PHP date difference days _php tutorial

PHP calculates a two-day difference between days, PHP date Difference days

This example describes how PHP calculates the two-day difference between days. Share to everyone for your reference. The implementation method is as follows:

<?php/** * Ask for a difference between two dates * (Taylor formula can be used before January 1, 1970) * @param string $day 1 * @param string $day 2 * @return number */FU Nction Diffbetweentwodays ($day 1, $day 2) {  $second 1 = strtotime ($day 1);  $second 2 = strtotime ($day 2);     if ($second 1 < $second 2) {    $tmp = $second 2;    $second 2 = $second 1;    $second 1 = $tmp;  }  Return ($second 1-$second 2)/86400;} $day 1 = "2013-07-27"; $day 2 = "2013-08-04"; $diff = Diffbetweentwodays ($day 1, $day 2); Echo $diff. " \ n ";

I hope this article is helpful to everyone's PHP programming.

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