A PHP function that can be used to throttle any actions you want, as to prevent flooding.
Personally, I've found this script to work best with Ajax requests, but truly, you can use it for almost anything.
PHP 5.3 is a minimum requirement as anonymous functions are used.
session_start();
$canPost = true;
throttle(array(
'id' => 'submit-comment',
'timeout' => 60, // Throttle user for 60 seconds
'passes' => 3, // if they attemps this action MORE than 3 times
'interval' => 15, // within 15 seconds
'throttled' => function($seconds){ // They've been throttled
$canPost = false;
$timeLeft = $seconds;
}
));
if(!$canPost){
echo "Hey, you're posting to quickly. Try again in $timeLeft seconds.";
} else {
// Post Comment
}session_start();
throttle(array(
'id' => 'submit-comment',
'timeout' => 60, // Throttle user for 60 seconds
'passes' => 3, // if they attemps this action MORE than 3 times
'interval' => 15, // within 15 seconds
'throttled' => function($seconds){ // They've been throttled
echo json_encode(array(
'success' => false,
'reason' => "Hey, you're posting to quickly. Try again in $seconds seconds."
)); die();
}
));
// Submit CommentthrottleKey: String, an identifier/key for the throttler to work with in the$_SESSIONarrayid: String, unique identifier for whatever action you're performing, so the throttler can keep track of multiple actionstimeout: Int, the length in seconds to disallow the user from doing an action if they have been throttledpasses: Int, number of times the user can do this action BEFORE they are throttledinterval: Int, number of seconds a user must do action in in order to be throttledthrottled: Function, the function that will be executed if the user has been throttled. Number of seconds left of timeout is passed as a parameter.
Copyright (c) 2012 Jacob Kelley, @jakiestfu, http://jakiestfu.com
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