can I create timer in php

Answer 1

Yes you can. It is possible to declare time as a variable and you can execute all kind of cool timer functions. Time difference for example.

Answer 2

<?php
t=time();
echo $t . "</br>";
echo date("Y-m-d", $t);
?>
output:
1471520860
2016-08-18

and you can set a cookie with value of $t and substract it from current date anywhere, anytime.

Answer 3

it can be possible