Api/AbstractData.php
protected function get($tag)
    {
        if (isset($this->data[$tag])) {
            return $this->data[$tag];
        }

        return null;
    }
protected function get($tag)
    {
        if (isset($this->data[$tag])) {
            return $this->data[$tag];
        }

        return null;
    }
protected function get ( $ tag ) { if ( isset ( $ this -> data [ $ tag ] ) ) { return $ this -> data [ $ tag ] ; } return null ; }
Returns the value for the given tag.

@param string $tag

@return string|null
Returns the value for the given tag .