original_string: private function createWord()
      {
  
          $this->word ='';
          for($x=0;$x<rand(5,7);$x++){
  
              $this->word .=$this->allowed_characters[ rand(0, strlen($this->allowed_characters)-1)];
          }
          return $this->word;
      }
code: private function createWord()
      {
  
          $this->word ='';
          for($x=0;$x<rand(5,7);$x++){
  
              $this->word .=$this->allowed_characters[ rand(0, strlen($this->allowed_characters)-1)];
          }
          return $this->word;
      }
code_tokens: private function createWord ( ) { $ this -> word = '' ; for ( $ x = 0 ; $ x < rand ( 5 , 7 ) ; $ x ++ ) { $ this -> word .= $ this -> allowed_characters [ rand ( 0 , strlen ( $ this -> allowed_characters ) - 1 ) ] ; } return $ this -> word ; }
docstring: Creates the word from the allowed characters
  
  @return string
docstring_tokens: Creates the word from the allowed characters