public function __isset( $property )
    {
        // Check if property exists as a custom document property
        if ( array_key_exists( $property, $this->properties ) ||
             in_array( $property, self::$specialProperties ) )
        {
            return true;
        }

        // If none of the above checks passed, the request is invalid.
        return false;
    }
public function __isset( $property )
    {
        // Check if property exists as a custom document property
        if ( array_key_exists( $property, $this->properties ) ||
             in_array( $property, self::$specialProperties ) )
        {
            return true;
        }

        // If none of the above checks passed, the request is invalid.
        return false;
    }
public function __isset ( $ property ) { // Check if property exists as a custom document property if ( array_key_exists ( $ property , $ this -> properties ) || in_array ( $ property , self :: $ specialProperties ) ) { return true ; } // If none of the above checks passed, the request is invalid. return false ; }
Check if document property is set

Check if document property is set

@param string $property
@return boolean
Check if document property is set