PHPBuilder - No: days Calculator



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No: days Calculator

by: John
|
April 4, 2002

Version: 0.1

Type: Function

Category: Calendars/Dates

License: GNU General Public License

Description: Calculate the no: of days between two given dates.



function ddiff($fromdate,$todate,$days)
{
   $fromd = sscanf("$fromdate","%d/%d/%d");
   $tod = sscanf("$todate","%d/%d/%d");

   $yrdiff = $tod[2]-$fromd[2];
   $mondiff = $tod[1]-$fromd[1];
   $datediff = $tod[0]-$fromd[0];
   $datediff1 = 'fg';
   if ($yrdiff >= 0)
   {
	   if ($mondiff<0)
	   {
		 $mondiff1 = $mondiff + 12 - 1;
	   }
	   else if ($mondiff>=0 and $yrdiff>0)
	   {
		 $mondiff1 = $mondiff+12*$yrdiff;
	   }
	   else
	   {
		 $mondiff1 = $mondiff;
	   }
	   $days = 0;

	   if ($mondiff1>1)
	   {
		 $mon = $fromd[1];
		 $yr = $fromd[2];

		 for($i=1 ; $i<=$mondiff1-1 ; $i++ )
		 {
		   $mon = $mon+1;
		   if ($mon>12)
		   {
			 $mon=1;
			 $yr =$yr+1;
		   }
		   $days =  $days+date(t,mktime(0,0,0,$mon,1,$yr));
		 }
	   }
	   else if ($mondiff1 == 1)
	   {
		  $datediff1 = $tod[0] + date(t,mktime(0,0,0,$fromd[1],$fromd[0],$fromd[2])) - $fromd[0];
	   }
	   else $datediff1 = $datediff;

	   $days = $days + $datediff1 + 1;
	   return $days;
	}       
$days = ddiff("1/2/2002","15/3/2002",$days);
echo "$days <br>";

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