PHP/Graphics Image/imagefilledellipse

Create a larger image, recreate that brush, and use it as the outline for a shape.

 
<?php
    $pic = imagecreatetruecolor(600,600);
    $brush = imagecreate(100,100);
    $brushtrans = imagecolorallocate($brush, 0, 0, 0);
    imagecolortransparent($brush, $brushtrans);
    for ($k = 1; $k < 8; ++$k) {
         $color = imagecolorallocate($brush, 255, $k * 15, 0);
         imagefilledellipse($brush, $k * 5, $k * 5, 5, 5, $color);
    }
    imagesetbrush($pic, $brush);
    imageellipse($pic, 300, 300, 350, 350, IMG_COLOR_BRUSHED);
    imagepng($pic);
    imagedestroy($pic);
    imagedestroy($brush);
?>

More Shapes

 
<?php
    header("content-type: image/png");
    $image = imagecreatetruecolor(400,300);
    $blue = imagecolorallocate($image, 0, 0, 255);
    $green = imagecolorallocate($image, 0, 255, 0);
    $red = imagecolorallocate($image, 255, 0, 0);
    imagefilledellipse($image, 200, 150, 200, 200, $red);
    imagefilledarc($image, 200, 150, 200, 200, 75, 105, $green, IMG_ARC_PIE);
    imagepng($image);
    imagedestroy($image);
?>