Profanity Filter

A simple class to test if a string has a profanity in it.

Note:

• This package is extended version from DeveloperDino\ProfanityFilter, with some extra new features.

NEW FEATURE

---

• cleanWords : obfuscate only the bad words, original package will obfuscate all sentence see this issue.

  // assume that 'badword' is a bad word
  $words = 'This is a badword';
  
  echo $check->cleanWords($words);
  // output -> This is a *******
  
  echo $check->cleanWords($words, '+');
  // output -> This is a +++++++
  

• getBadWordsfound -> get bad word string from check

  // assume that 'badword' is a bad word
  $words = 'This is a badword';
  
  $check->hasProfanity($words);
  echo $check->getBadWordsFound();
  // output -> badword
  
  

• Whitelists : Set some whitelist word to fix false positive issue filter

  // Set whitelist when initialize the class
  $filter = new Check($profinities, $whitelist);
  
  See `NotProfaneTest` to see more example of whitelist test
  

Checks performed

Straight matching

Checks string for profanity as it is against list of bad words. E.g. badword

Substitution

Checks string for profanity with characters substituted for each letter. E.g. bâdΨ0rd

Obscured

Checks string for profanity obscured with punctuation between. E.g. b|a|d|w|o|r|d

Doubled

Check string for profanity that has characters doubled up. E.g. bbaaddwwoorrdd

Combinations

Also works with combinations of the above. E.g. b|â|d|Ψ|0|rr|d

Installation

Install this package via composer.

php composer.phar require developer/profanity-filter

Usage

/* default constructor */
$check = new Check();
$hasProfanity = $check->hasProfanity($badWords);
$cleanWords = $check->obfuscateIfProfane($badWords);

/* customized word list from file */
$check = new Check('path.to/wordlist.php');

/* customized word list from array */
$badWords = array('bad', 'words'); // or load from db
$check = new Check($badWords);

License

ProfanityFilter is open-sourced software licensed under the MIT license