stop forum flooding

Posted on 2008-10-24
Last Modified: 2012-05-05
ok i have been having problems with people flooding my forum... any suggestions how i could stop this?
(i have shortend down my reply script)
<table width="70%" class='maintables'>

<tr class='headline'><td>Reply</td></tr>

	<tr class='maintables'>

		<td align="center">



			if(isset($_POST['submit'])) {




				if(strlen($yourpost)<1) {

					print "You did not type in a post."; //no post entered


					$thedate=date("U"); //get unix timestamp

					$displaytime = time();

					//we now strip HTML injections



					//This is where the bbcode come in.

					$message = new BBCode;

					$message->selection = $yourpost;

					$message->parseCode(); // set to 1 if you want to disable bbcode


					$yourpost = $message->parsed;

					$insertpost="INSERT INTO `forumtutorial_posts` (`author`,`forum`,`title`,`post`,`showtime`,`realtime`,`lastposter`,`parentid`) values('$name','$forum','$subject','$yourpost','$thedate','$thedate','$name','$id')";

					mysql_query($insertpost) or die("Could not insert post"); //insert post

					$updatepost="UPDATE `forumtutorial_posts` SET `numreplies`=`numreplies`+'1', `lastposter`='$name', `lastrepliedto`='$thedate' WHERE `postid`='$id'";

					mysql_query($updatepost) or die("Could not update post");

                                  $updatep="UPDATE `users` SET `post_count`=`post_count`+'1' WHERE `Username`='$name'";

					mysql_query($updatep) or die("Could not update post");

					print "Message posted, go back to <A href='index.php?page=message&id=$id&forum=$forum'>Message</a>.";



				$gettopic="SELECT * FROM `forumtutorial_posts` WHERE `postid`='$id'";

				$gettopic2=mysql_query($gettopic) or die("Could not get topic");






                <?php  if($gettopic3['forumlock'] == 0)


     ?> Your message:





                    <br><form action='index.php?page=reply&forum=<? echo $forum; ?>&id=<? echo $_GET['id']; ?>' method='post' name='myform'>

					  <div style='padding-left: 5px; padding-top:5px;'></div>

					  <input name="title" type="hidden" value="<?php echo $gettopic3['title'];?>" />

				      <textarea id="inputforum" class="inputforum" name='yourpost' rows='5' cols='40'><?php if(isset($_POST['quote'])) {

                        $quote= $_POST['quote'];

						   $query = "SELECT * FROM forumtutorial_posts where postid=$quote"; 

if ($result = mysql_query($query)){

    if (mysql_num_rows($result)) {

        $array = mysql_fetch_assoc($result);}


?> quote by:<?php echo $array['author'];?>


echo $array['post']; }}?> [/quote]</textarea>


				      <input type='submit'class="submit-btn" name='submit' value=''>






    echo 'forum is locked';






			?>		</td>




$pagenum = isset($_GET['pagenum']) ? $_GET['pagenum'] : "1";

$gettopic="SELECT * from forumtutorial_posts where postid='$id'";

$gettopic2=mysql_query($gettopic) or die("Could not get topic");




//Here we count the number of results

//Edit $data to be your query

$data = mysql_query("SELECT * from forumtutorial_posts where parentid='$id'") or die(mysql_error());

$rows = mysql_num_rows($data);

//This is the number of results displayed per page

$page_rows = 4;

//This sets the range to display in our query

$max = 'limit ' .($pagenum - 1) * $page_rows .',' .$page_rows;

//This is your query again, the same one... the only difference is we add $max into it








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Question by:runnerjp
1 Comment
LVL 31

Accepted Solution

Frosty555 earned 500 total points
ID: 22797192
Every time the user makes a post, update their user profile (e.g. whatever table you are using to store user information) to store the date/time of the last post.

Next time a user tries to post, first check how long it has been between the current date, and the last post date. If less than a minute or so has elapsed, fail with a validation error telling the user to wait. Only allow posts after a certain amount of time has elapsed.

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