Help blocking words from

Starwind237 · 03-24-2008, 11:51 PM

So I modded bug14's neater thingy to post contact details in a simple list. The only problem is I know stupid people will post a bunch of vulgar crap into it. That's why I want to incorporate a block list into.

This is what I'm currently trying but it blocks you no matter what you post.

PHP Code:

  <?php

//Some variables...

$aim = $_POST['aim'];

$yim = $_POST['yim'];

$msn = $_POST['msn'];

$name = $_POST['name'];

$email = $_POST['email'];

 
//Keeping out spam

//lowered badness level of words for younger GGers ^_^

$wordlist = "crap|dang|shoot|sex";

 
if(preg_replace("/\b($wordlist)\b/ie", 'preg_replace("/./","*","\\1")', $name)){

    echo 'You have tried to post something on the blocklist!';}

 
elseif(preg_replace("/\b($wordlist)\b/ie", 'preg_replace("/./","*","\\1")', $aim)){

    echo 'You have tried to post something on the blocklist!';}

 
elseif(preg_replace("/\b($wordlist)\b/ie", 'preg_replace("/./","*","\\1")', $yim)){

    echo 'You have tried to post something on the blocklist!';}

    

elseif(preg_replace("/\b($wordlist)\b/ie", 'preg_replace("/./","*","\\1")', $msn)){

    echo 'You have tried to post something on the blocklist!';}    

 
elseif(preg_replace("/\b($wordlist)\b/ie", 'preg_replace("/./","*","\\1")', $email)){

    echo 'You have tried to post something on the blocklist!';}    

    

    else{

            if($name!="") {

                header("Location: view.php");

                //writes contact information to text file.

                $handle = fopen("contacts.txt", "a");

                    fwrite($handle, $name.".::.".$aim.".::.".$yim.".::.".$msn.".::.".$email."\r\n");

                fclose($handle);

                }

            else {

                echo $html_one;

                echo 'Please enter your name and full contact details.';

                }

                

        }

$html_one = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />

<title>Please Enter Contact Details</title>

</head>';

    

?>

rcadble · 03-25-2008, 11:14 AM

Just use PHP's str_replace, it's a lot easier to use than regex.

Code:

<?php
$badwords = Array("crap", "dang", "shoot", "sex"); //add your words there
$aim = str_replace($badwords, "*BLOCKED*", htmlentities($_POST['aim'])));
$yim = str_replace($badwords, "*BLOCKED*", htmlentities($_POST['yim']));
$msn = str_replace($badwords, "*BLOCKED*", htmlentities($_POST['msn']));
$name = str_replace($badwords, "*BLOCKED*", htmlentities($_POST['name']));
$email = str_replace($badwords, "*BLOCKED*", strip_tags($_POST['email']));

if(!ereg("^[a-zA-Z0-9._%-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$", $email)) { //if it isn't a real email
	$errors .= "You entered an improperly formatted email address.<br>";
} 

if(stristr($aim, '*BLOCKED*') == true || stristr($msn, '*BLOCKED*') == true || stristr($yim, '*BLOCKED*') == true || stristr($name, '*BLOCKED*') == true || stristr($email, '*BLOCKED*') == true || ) {
	$errors .= "You entered a vulgar aim, yim, msn, name, or email.<br>";
}

if (strlen($name)==0 || strlen($email)==0) {
	$errors .= "Please do not enter a blank name or email.<br>";
}

if ($errors=="") {
	header("Location: view.php"); 
	$handle = fopen("contacts.txt", "a");
		fwrite($handle, $name.".::.".$aim.".::.".$yim.".::.".$msn.".::.".$email."\r\n");
	fclose($handle);
} else {
	echo $errors;
}
?>

I got rid of the $html_one crap since I didn't know what you were trying to do there, I'm sure you could easily reimplement that.

Starwind237 · 03-25-2008, 11:35 AM

$html1 was in bug14's original program. It basicly just set's up the title and a few other things.

Well, you had few typos that I had to debug. But, thanks to you I got it working!

Thanks a lot +rep