PHP calculates how many days to specify the date method, PHP date _php tutorial

How many days do PHP calculate to a specified date, PHP date

This example describes how PHP calculates the number of days to a specified date. Share to everyone for your reference. Specific as follows:

function Countdays ($d) {$olddate = substr ($d, 4); $newdate = Date (Y). "". $olddate; $nextyear = Date (Y) +1. "". $olddate;  if ($newdate > Date ("y-m-d"))  {  $start _ts = Strtotime ($newdate);  $end _ts = strtotime (Date ("y-m-d"));  $diff = $end _ts-$start _ts;  $n = round ($diff/86400);  $return = substr ($n, 1);  return $return;  }  else  {  $start _ts = Strtotime ($nextyear);  $end _ts = strtotime (Date ("y-m-d"));  $diff = $end _ts-$start _ts;  $n = round ($diff/86400);  $return = substr ($n, 1);  return $return;  }}

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

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