//simple hello world
<?
header ("Content-type: image/png");
$img_handle = ImageCreate (200, 20) or die ("Cannot Create image");
$back_color = ImageColorAllocate ($img_handle, 0, 10, 10);
$txt_color = ImageColorAllocate ($img_handle, 235, 235, 51);
ImageString ($img_handle, 10, 25, 5, "Hello world!", $txt_color);
ImagePng ($img_handle);
?>