Bad Words filtering

[kayz100]

PHPfreaks your script woks fine. However I would like to make a few modifications and apply it inside input fields, how do I do that? Lets say my input fields are as foolows:

 

<input type='text' name='badwords' /> <!-- where do I put php on this input field as a php include file-->

 

<?php

$badwords = array('bad1', 'bad2', 'bad3', 'ass');

$text = 'This is a test. Ass. Grass. bad1.';

function filterBadwords($text, array $badwords, $replaceChar = '*') {
    return preg_replace_callback(
        array_map(function($w) { return '/\b' . preg_quote($w, '/') . '\b/i'; }, $badwords),
        function($match) use ($replaceChar) { return str_repeat($replaceChar, strlen($match[0])); },
        $text
    );
}

echo filterBadwords($text, $badwords);

?>

[jcbones]

Are you talking about adding bad words to a bad words list?

 

Not tested- May not be error free

 

<?php
if(!empty($_POST['badwords'])) {
 if(strpos(',',$_POST['badwords']) !== false) {
  $arr = explode(',',$_POST['badwords']);
  $str = implode(PHP_EOL,$arr);
 } else {
  $str = $_POST['badwords'] . PHP_EOL;
 }
file_put_contents('badwords.txt',$str,FILE_APPEND);
}
 
if(file_exists('badwords.txt')) {
 $badwords = file('badwords.txt');
} else {
 $badwords = array();
}
 
$text = 'This is a test. Ass. Grass. bad1.';

function filterBadwords($text, array $badwords, $replaceChar = '*') {
    return preg_replace_callback(
        array_map(function($w) { return '/\b' . preg_quote($w, '/') . '\b/i'; }, $badwords),
        function($match) use ($replaceChar) { return str_repeat($replaceChar, strlen($match[0])); },
        $text
    );
}

echo filterBadwords($text, $badwords);
 
?>
<form action="" method="post">
<label for="badwords">Add a Word to the Filter</label><br />
<input type="text" name="badwords" />
<input type="submit" name="submit" value=" ADD " />
</form>

[kayz100]

Hi guru

I meant how go I get users input to replace any badwords with symbols? My biggest problem is using input field with PHP, as a newbie I am struggling a bit so any help would be welcomed and appreciated greatly. I mean the above example for instance the badwords.text am i correct to add bad words in the file as follows: "bad1","bad2","bad3"

or do I have to enter badwords this way: "bad1, bad2, bad3"

 

I want to make sure that when user type in a bad word in the field it alerts them that thier badword will be replaced with ***

Thank you once again