1. <?php
  2. // Cron settings
  3. $cron_url="http://yoursite.com/path/to/cron.php"; // Cron URL here.
  4. $time_interval=20; // Time interval needed (second).
  5. $real_time_interval=1; // Real time interval (minute).
  6. set_time_limit(0);
  7. ignore_user_abort(1);
  8. $number_of_execution=floor($real_time_interval*60/$time_interval);
  9. for($i=0; $i<$number_of_execution; $i++) {
  10. $time=microtime(1);
  11. file_get_contents($cron_url);
  12. $time=microtime(1)-$time;
  13. $i<$number_of_execution and sleep($time_interval-$time);
  14. }
  15. ?>
  16. Done