[SOLVED] find value in array depending on word in user input

[helraizer]

Hi Folks,

 

I have a filtering system to clean up user input in the respect of swearing.

 

The code I have at the moment is this:

 

<?php 
$dirty = array('rude word', 'another', 'and another rude word', 'another, please Carol');
                        
                        foreach($dirty AS $bad_word){
                        	
                        $text = preg_replace("/$bad_word/i","****", $text);
                                                } 
?>

 

So if the user inputted 'rude word me, it works!!!' and then 'and another rude word you' it'd turn into '**** me, it works!!!' and '**** you'.

 

Which makes it look odd, so instead of the preg_replace I was thinking of throwing an error message (which I also have using $errors as an array).

 

<?php
define('_SWEAR', 'The word you entered, "'.$word.'", has been detected as being offensive; your post has not been submitted. Sorry for any inconvenience.'); //for the error.
?>

 

How would I get it so that $word is the value in the $dirty array that the user inputted so it'd read:

 

Error!

- The word you entered, "rude word", has been detected as being offensive; your post has not been submitted. Sorry for any inconvenience.

 

Otherwise it'd just pull out any if not all of the elements of the array. How would I do this?

 

Thanks,

Sam

[Psycho]

The code below will only work "well" if there is only 1 bad word in the text. There are different ways to handle if there are multiple bad words and I didn't want to make an assumption.

 

<?php
define('_SWEAR', 'The word you entered, [WORD], has been detected as being offensive; your post has not been submitted. Sorry for any inconvenience.'); //for the error.

$dirty = array('rude word', 'another', 'and another rude word', 'another, please Carol');


$error = false;
foreach($dirty AS $bad_word){

    if (strpos($text, $bad_word)) {
        $error = preg_replace("/[WORD]/", $bad_word, _SWEAR);
    }

}

if ($error) {

  echo $error;

} else {

  //Process the post

}

?>

[laffin]

u can use preg_match

$errors=array();
foreach($dirty AS $bad_word){
          if(preg_match("/$bad_word/i", $text)) $errors[]="$bad_word, is not allowed in this area!";
if(isset($errors))
{
    foreach($errors as $msg)
       echo "<H2>$msg</h2><BR>";
    die();
}

 

[helraizer]

Thanks guys, it works perfectly now.

 

Sam