Website won't load after custom helper functions added

[eluser]A_funs[/eluser]
I am autoloading a custom helper into my application, the file is loaded without issue but if I define any function in it the application will hang and not load.

Code:

<?php


  function preparecomment($comment){
    
        return 'comment';
  
  
  };

If I leave it blank, like this ; the app will load without issue:

Code:

<?php

really don't know what could be causing this issue

[eluser]PravinS[/eluser]
first you are returning string "comment" and second don't use semi color ( at the end of function