How to calculate how many days are left in php

Calculation method: 1. Use the "time()" statement to obtain the current timestamp; 2. Use the "strtotime("date")" statement to convert the specified date into a timestamp; 3. Convert the two timestamps Subtract to get the time difference; 4. Use the "floor(time difference/86400)" statement to convert the time difference into a days difference to get the remaining days.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

php calculation remains How many days

Implementation method:

• Use the time() function to get the current timestamp

• Use the strtotime() function to convert the specified time into a timestamp

• Subtract the two timestamps to get the time difference

• Divide the time difference by The total number of seconds in a day (24*60*60=86400), use floor() to round, and convert the time difference into a difference in days

Implementation example: Today is April 26 Number, let’s see how many days are left until May Day

<?php
header("Content-type:text/html;charset=utf-8");
//2022年5月1日 
$time1=strtotime("2022-5-1");
//当前时间戳
$time2=time();

$diff_seconds = $time1 - $time2;
$diff_days = floor($diff_seconds/86400);
echo "距离五一还剩： ".$diff_days." 天";
?>

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