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);

##Optional. Specified year. Optional. Set to 1 if the time is during daylight saving time, 0 otherwise, or -1 (default) if unknown. If unknown, PHP will try to find it itself (possibly producing unexpected results).

Parameters	Description
hour	optional. Specified hours.
minute	Optional. prescribed points.
second	Optional. Specifies seconds.
month	Optional. Specified month.
day	Optional. Specify days.
year
is_dst	Note: This parameter is deprecated in PHP 5.1.0. Instead, new time zone handling features are used.

Return value: Returns an integer Unix timestamp, or FALSE if error occurs.

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