original_string: public function isBase64()
      {
          if (!is_string($this->data)) {
              return false;
          }
  
          return base64_encode(base64_decode($this->data)) === $this->data;
      }
code: public function isBase64()
      {
          if (!is_string($this->data)) {
              return false;
          }
  
          return base64_encode(base64_decode($this->data)) === $this->data;
      }
code_tokens: public function isBase64 ( ) { if ( ! is_string ( $ this -> data ) ) { return false ; } return base64_encode ( base64_decode ( $ this -> data ) ) === $ this -> data ; }
docstring: Determines if current source data is base64 encoded
  
  @return boolean
docstring_tokens: Determines if current source data is base64 encoded