How to convert minutes and seconds into seconds in php

In PHP, you can use the mktime() function to convert minutes and seconds into seconds. This function can return a UNIX timestamp of a specified date. The syntax is "mktime(0, minute value, second value) ,0,0,0)”.

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

In PHP, you can use the mktime() function to convert minutes and seconds into seconds.

<?php
header(&#39;content-type:text/html;charset=utf-8&#39;);
echo "<br>秒数值：".mktime(0,20,30,0,0,0); 
echo "<br>指定秒数值转回来：".date("i分s秒", mktime(0,20,30,0,0,0)); 
?>

Description:

The mktime() function can obtain the UNIX timestamp of the specified date.

Syntax:

mktime(hour,minute,second,month,day,year,is_dst);

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