PHP example code for calculating the number of days between two dates

This article mainly introduces the method of calculating the number of days between dates in PHP, and analyzes the related skills of PHP date and time operation and conversion in the form of examples. Friends in need can refer to the following

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:

<?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;

Count the data that will expire in a few days

datediff(yxdate_star,now())

Return the number of days: yxdate_star-now()

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