Run a PHP script every second using CLI

by

You could actually do it in PHP. Write one program which will run for 59 seconds, doing your checks every second, and then terminates. Combine this with a cron job which runs that process every minute and hey presto.

One approach is this:

set_time_limit(60);
for ($i = 0; $i < 59; ++$i) {
    doMyThings();
    sleep(1);
}

The only thing you’d probably have to watch out for is the running time of your doMyThings() functions. Even if that’s a fraction of a second, then over 60 iterations, that could add up to cause some problems. If you’re running PHP >= 5.1 (or >= 5.3 on Windows) then you could use time_sleep_until()

$start = microtime(true);
set_time_limit(60);
for ($i = 0; $i < 59; ++$i) {
    doMyThings();
    time_sleep_until($start + $i + 1);
}

More Related Contents:

  1. Print time in 15-minute increments between two times in the same day
  2. How to get time difference in minutes in PHP
  3. What are the “standard” timezone abbreviations?
  4. Single result from database using mysqli
  5. PHP: How do you determine every Nth iteration of a loop?
  6. PHP: running scheduled jobs (cron jobs)
  7. Can you ‘exit’ a loop in PHP?
  8. How to find the foreach index?
  9. Accessing dates in PHP beyond 2038
  10. How to check if time is between two times in PHP [duplicate]
  11. Run a mySQL query as a cron job?
  12. How to sum N number of time (HH:MM Format)?
  13. Looping a multidimensional array in php
  14. Subtract time in PHP
  15. Run Cron Job on PHP Script, on localhost in Windows
  16. How to convert seconds to time format? [duplicate]
  17. How to run a cronjob every X minutes?
  18. Removing last comma from a foreach loop
  19. PHP CLI: How to read a single character of input from the TTY (without waiting for the enter key)?
  20. Insert elements from one array (one-at-a-time) after every second element of another array (un-even zippering)
  21. How to perform an action every 5 results?
  22. Can PHP detect if its run from a cron job or from the command line?
  23. Best way to periodically execute a PHP script?
  24. Using a variable outside of the while loop (scope)
  25. Cron Dispatcher CakePHP 2.0
  26. PHP Timezone List
  27. PHP array printing using a loop
  28. Subtracting a certain number of hours, days, months or years from date
  29. Sort directory files by creation datetime in Windows filesystem
  30. Twig for loop for arrays with keys

Leave a Comment