I need help to create a script that checks a condition every 1 second. Help anyone???

[phproy]

I need help to create a script that checks a condition every 1 second for 100 seconds.
Firstly I set max time limit to 101 seconds to make sure I don't time out.
Then I loop it until a condition is met.
When condition is met, run_a_function(); is executed.

I used sleep(1) to make sure the script is ran once a second. I know this might not be the solution to this script.
Please suggest improvement.

Here is the pseudo code:

<?
set_time_limit(101);

for ($time=0; $time<100;$time++ )
{

if ($condition)

{
run_a_function();
break;
}
sleep(1);
}

?> 

Any guru please?

[planetsim]

use crontab. To execute the script from there just program your file as you would any other.

[phproy]

I know I can use crontab and stuff but I needed help for this creating this function specifically. And also for the sake of education.

[phproy]

I managed to solve the problem guys.

Here is the code in case someone might find it useful:

<?
set_time_limit(101); 

$time = 1;
While ($time < 100) { 
echo $time;
sleep(1); 
if ($condition)
{
break;
}
$time++;
} 

?>