Example analysis of calculating the number of days difference between dates using PHP

This article analyzes the method of calculating the number of days between dates in PHP. Share it with everyone for your reference, the details are as follows:

<&#63;PHP
//今天与2016年10月27日相差多少天
$Date_1=date("Y-m-d");
$Date_2="2016-10-27";
$d1=strtotime($Date_1);
$d2=strtotime($Date_2);
$Days=round(($d1-$d2)/3600/24);
echo  "今天与2016年10月27日相差".$Days."天";
echo "<br>";
//今天到2018年9月9日还有多少天
$Date_1=date("Y-m-d");
$Date_2="2018-09-09";
$d1=strtotime($Date_1);
$d2=strtotime($Date_2);
$Days=round(($d2-$d1)/3600/24);
echo  "今天到2018年9月9日还有".$Days."天";
?>

//---------------------------------------------
$arrayStartDate =explode("/",$myStartDate); 
$arrayEndDate = explode("/",$myEndDate);
$jdStartDate = cal_to_jd(CAL_GREGORIAN,$arrayStartDate[1],$arrayStartDate[0],$arrayStartDate[2]);
$jdEndDate = cal_to_jd(CAL_GREGORIAN,$arrayEndDate[1],$arrayEndDate[0],$arrayEndDate[2]);
$duration = $jdEndDate - $jdStartDate + 1;

Statistics of data that will expire in a few days

datediff(yxdate_star,now())

Return number of days: yxdate_star-now()

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