How to get the number of days difference between a specified date in php

This article mainly introduces the method of php to obtain the number of days difference between a given date, and analyzes two methods of calculating the number of days difference between dates based on specific examples, involving php datestringConversion related operation skills, friends in need can refer to the following

The example in this article describes the method of obtaining the number of days difference between a given date in PHP. Share it with everyone for your reference, the details are as follows:

Method one:

<?php
function count_days($a,$b){
 $a_dt=getdate($a);
 $b_dt=getdate($b);
 $a_new=mktime(12,0,0,$a_dt[&#39;mon&#39;],$a_dt[&#39;mday&#39;],$a_dt[&#39;year&#39;]);
 $b_new=mktime(12,0,0,$b_dt[&#39;mon&#39;],$b_dt[&#39;mday&#39;],$b_dt[&#39;year&#39;]);
 return round(abs($a_new-$b_new)/86400);
}
//今天与2017年8月26日相差多少天
$date1=strtotime(date("Y-m-d"));
$date2=strtotime(&#39;2017-8-26&#39;);
$result=count_days($date1,$date2);
echo $result;
?>

Running result: 187

Method two:

<?php
//今天与2017年8月26日相差多少天
$Date_1=date("Y-m-d");
$Date_2="2017-8-26";
$d1=strtotime($Date_1);
$d2=strtotime($Date_2);
$Days=round(($d2-$d1)/3600/24);
echo "今天与2017年8月26日相差".$Days."天";
?>

Run result:

今天与2017年8月26日相差187天

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