Untitled

test.php:<?phpheader("Content-type: image/png");$p = new Graph(500,200);$p->addBorder("black");$p->renderImage();?>graph.php:<?phpclass Graph {	public function Graph($x_size, $y_size) {		$this->im = imagecreate($x_size, $y_size);		$this->x_size = $x_size;		$this->y_size = $y_size;	}	public function addBorder($color) {		imageline($this->im, 0, 0, $this->x_size, 0, getColor($color));		imageline($this->im, $this->x_size, 0, $this->x_size, $this->y_size, getColor($color));		imageline($this->im, $this->x_size, $this->y_size, 0, $this->y_size, getColor($color));		imageline($this->im, 0, $this->y_size, 0, 0, getColor($color));	}	public function renderImage() {		imagepng($this->im);		imagedestroy($this->im);	}}?>