title: Blacklist of words on content to filter message
body: <p>For a website that takes input from kids we need to filter any naughty / bad words that they use when they enter their comments in the website (running PHP).</p>
  
  <p>The comments are a free field and users can enter whatever comments they want. The solution I can think of is to have a words list like 
  BLACKLIST: bad,bad,word,woord,craap,craaaap, (We can fill this with all the blacklisted words).</p>
  
  <p>Then when the form is saved we can look at the list and if any of the words are present then we will not allow the comment to be saved.</p>
  
  <p>BUT the prolem with this method is that they can get around by adding letters to the words to make it skip the filter EG: shiiiiit</p>
  
  <p>Let me know what you think is the best way to create some filter for these words.</p>