How to get the script to empty a MySQL table every 5 minutes?

If i wanted to empty a MySQL table every 5 minutes, which PHP script would work best?

 

You write query to delete all record, after user cron to set schedule

 

Explain with as much detail as possible please as i don't understand.

What I want is to add a script to a page that will empty all contents from the table called 'jail' every 5 minutes. How would i do this?

 

$sql="DELETE FOM jail";
mysql_query($query);

save it into file : cron.php
If you use Linux sever, You login into Cpanel, click Cron job
You set time to excute every 5 minute. If you need, i can help you

 

Well it is for a Jail page on a mafia game.

I want to be able to put something on the script that says "All prisoners will be released in *** seconds"

I want all prisoners to be released every 5 minutes so basically i want the table to empty every 5 minutes but i want people to be able to see how long till they get released.

Do you get me?

 

If the users are on the same page then start a timer with flash everytime you empty the database with vtida's method. It won't be directly connected with the cron time but doing this will be much easier and will have the same effect. If the users switch through pages, simply echo out the cron time. I'm assuming that vtida's method works though; I haven't manipulated cron before.