How do i run a php script every second?

Question

I am currently writing a online game. Now I have to check if an event happen (checking timestamp in database) and depending on that execute some actions. I have to check for

Answer 1

I searched for a better solution but it seems that my first idea, with clean code, is the best solution.

This is my current code:

<?php
set_time_limit(60);
$start = time();

for ($i = 0; $i < 59; ++$i) {
    // Do whatever you want here
    time_sleep_until($start + $i + 1);
}
?>

Answer 2

Why not modify the script so that it just repeats the code every second? This will reduce the parsing overhead and be less complicated.

Answer 3

$total_time = 0;
$start_time = microtime(true);
while($total_time < 60)
  {
        //DoSomethingHere;
    echo $total_time."\n";
    //sleep(5);
  $total_time =  microtime(true) - $start_time ;
  } 

add this in crontab to run every minute.

Answer 4

You should probably run the script once, and use a loop with delay to accomplish your desired timing. The side benefit is that this is more efficient, and you would only have to open resources (ie, databases) once.

Answer 5

You shouldn't want this :P. No host will accept your cronjob is running every second every minute? You can save the time it runned in a database, and the next time you run it calculate the time between both runs and do the calculations you want. every second is a very bad idea.