计算天数
/*日期比较函数，返回天数*/
function compare2Date($date1,$date2)
{
$time1 = $date1 != ” ? strtotime($date1) : time();
$time2 = $date2 != ” ? strtotime($date2) : time();
return abs(($time2 – $time1)/(3600*24));
}
echo compare2Date(’2009-5-1 18:20:10′,’2009-6-8′);
echo compare2Date(’5/1/2009′,’6/8/2009′);
echo compare2Date(’5/1/09′,’6/8/09′);
echo compare2Date(’May 1,2009′,’June 8,2009′);
