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Do an action 1 out of every N page requests

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  1. function probabilityMatch($inNumberOfEvents) {
  2. 	$max = min($inNumberOfEvents, mt_getrandmax());
  3. 	if ($max > 0) {
  4. 		return (mt_rand(0, $max) == 1);
  5. 	}
  6. }
  7.  
  8. // Example usage
  9. // if (probabilityMatch(10)) {
  10. //   clean the cache 1 out of every 10 page requests
  11. //   cleanCache();
  12. // }

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