public function Height()
    {
        if (!($this->height > 0))
            $this->height = \imagesy($this->resource);
        
        return $this->height;
    }
public function Height()
    {
        if (!($this->height > 0))
            $this->height = \imagesy($this->resource);
        
        return $this->height;
    }
public function Height ( ) { if ( ! ( $ this -> height > 0 ) ) $ this -> height = \ imagesy ( $ this -> resource ) ; return $ this -> height ; }
Image height in pixels
@return int
Image height in pixels