codice:
<?php
header ("Content-type: image/jpeg");
$im = @imagecreate(200, 200)
     or die("Cannot Initialize new GD image stream");
$bg_color = imagecolorallocate($im, 255, 255, 255);
$red = imagecolorallocate($im, 233, 14, 91);
imagefilledrectangle($im, 2, 2, 100, 100, $red);
imagejpeg($im);
imagedestroy($im);
?>