Date: 07/21/05 (PHP Community)    Keywords: php

So, I was going to ask for some ideas on how to do IP Throttling with PHP, but came up with something before I had a chance to post anything:


throttle.php

 IP_LIMIT);
		if(!$denied)
			$data[$_SERVER['REMOTE_ADDR']]++;
	}

	// write the data back to the file
	$data_string = serialize($data);
	$fp = fopen(DATAFILE, "w");
	fputs($fp, $data_string);
	fclose($fp);

	if($denied) {
		switch(THROTTLING_ACTION) {
			case "redirect":
				header("Location: " . THROTTLING_MESSAGE);
				die;
				break;
			default:
				echo THROTTLING_MESSAGE;
				die;
				break;
		}
	}
?>

Source: http://www.livejournal.com/community/php/322901.html