original_string: protected function __prefixExists($prefix)
      {
          if (Hash::get($this->prefixes, ucfirst($prefix)) == null) {
              return false;
          }
  
          return true;
      }
code: protected function __prefixExists($prefix)
      {
          if (Hash::get($this->prefixes, ucfirst($prefix)) == null) {
              return false;
          }
  
          return true;
      }
code_tokens: protected function __prefixExists ( $ prefix ) { if ( Hash :: get ( $ this -> prefixes , ucfirst ( $ prefix ) ) == null ) { return false ; } return true ; }
docstring: Checks if a prefix exists.
  
  @param string $prefix The prefix.
  @return bool
docstring_tokens: Checks if a prefix exists .