Badwords Checker In PHP Forms

Well i am trying to add a badwords checker in a form where if there is a badword entered a error is displayed when submit

do you know of any function which would do this ??

 

I think you can get some idea about that from here

http://snipplr.com/view/6332/censor-bad-words-with-regexp/

 

<?php

$badwords = array('badword1','badword2','badword3','badword4');

$badwords = explode(",", $badwords);

foreach($badwords as $badword) {
preg_replace("/$badword/i", "FIXED WORD", $badword);
}

?>

PHP:

The preg $badword can be replaced with say $text, so that it doesn't just fix the array, but it fixes a paragraph. Example:

<?php

$text = "hello mother badword1s!! i've been on t3h badword1ing interwebs for some time now. now go eat badword2 and lets jump around like a bunch of badword3holes and be badword4s!!!!";

$badwords = array('badword1','badword2','badword3','badword4');

$badwords = explode(",", $badwords);

foreach($badwords as $badword) {
preg_replace("/$badword/i", "*****", $text);
}

echo $text;

?>

PHP:

This would output...

Hope that helps

 

is it possible like if there is a badword it will tell that its false and give a error .. i mean the function

 

What do you mean? The function will only replace words that you define as bad .

 

no what i want is like a form checker like its a email submission people put badwords in thier emails all i want is that if there is a badword the function returns false

 

may be following function can be helpful..

function contains_badword($str_to_check)
	{
		$found = false;
		$bad_words = array('badword1', 'badword2', 'badword3', 'badword4');
		foreach($bad_words as $bad_word)
		{
			$found = preg_match("/$bad_word/i", $str_to_check);
			if($found > 0)
				break;
		}
		if($found > 0)
			return true;
		else
			return false;
	}

PHP: