How to calculate the number of months between a specified date in PHP

How to calculate the difference in months in php: 1. Use the strtotime() function to convert two specified dates into timestamp form; 2. Use the "date('m', timestamp)" statement to obtain The months of the two specified dates; 3. Subtract the two obtained months to calculate the difference in months.

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

php calculates the difference between specified dates Month

The specific implementation method is as follows:

<?php
header("Content-type:text/html;charset=utf-8");
$strtotime1=strtotime(&#39;2021-01-06&#39;);
$strtotime2=strtotime(&#39;2021-10-06&#39;);
$y=date(&#39;Y&#39;,$strtotime1);
$ys=date(&#39;Y&#39;,$strtotime2);
$m=(int)date(&#39;m&#39;,$strtotime1);
$ms=(int)date(&#39;m&#39;,$strtotime2);
$chaY=$ys-$y;
//月份相差多少
$chaM=12-$m + $ms;
//相差一年就加12
$yearmeth=$chaM + (($chaY-1) *12);
echo $yearmeth;
?>

Output result:

Instructions:

# The ##strtotime() function parses any English text date or time description into a Unix timestamp (number of seconds since January 1 1970 00:00:00 GMT).

PHP date() function can format the timestamp into a more readable date and time.

• Y - Four-digit representation of the year

• m - Numeric representation of the month (from 01 to 12)

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