Mktime function in php ?

The mktime function returns the timestamp in a Unix format.
 Syntax.

<?php
     mktime(hour, minute, second, month, day, year, is_dst);
 ?>

HERE,
mktime(…) :  is the make php timestamp function
hour :  is optional parameters , it denotes the number of hour
minute : is optional parameters, it denotes the number of minutes
second : is optional parameters, it denotes the number of seconds
month : is optional parameters, it denotes the number of the month
day :  is optional parameters, it denotes the number of the day
year :  is optional parameters, it denotes the number of the year
is_dst :  is optional parameters, it is used to determine the day saving time (DST). 1 for DST, 0 if it is not and -1 if it is unknown.

 Let’s have look at an example which creates a timestamp for the date 15/11/2030 using the mktime function.

<?php
  echo mktime(0,0,0,11,15,2030);
 ?>

  HERE,
    “0,0,0” is the hour, minute and seconds respectively.
    “15” is the day of the month
    “11” is the month of the year
    “2030” is the year

Output:

1920931200