»Texteffekte mit PHP: imagettftext mit Schatten

function imagettfshadow($im, $size, $angle, $x, $y, $font, $text, $width, $frcolor, $bgcolor=false, $degree=315) {
	$frcolor =imagecolorsforindex($im, $frcolor);
	// gradient
	if ($bgcolor !== false) {
		// trouble shooting
		if ($width == 1) {
			$width = 2;
		}
		$bgcolor =imagecolorsforindex($im, $bgcolor);
		$steps = array(
			'red' => ($frcolor['red'] - $bgcolor['red']) / ($width-1),
			'green' => ($frcolor['green'] - $bgcolor['green']) / ($width-1),
			'blue' => ($frcolor['blue'] - $bgcolor['blue']) / ($width-1)
		);
	}
	else {
		$bgcolor = $frcolor;
	}
	// display shadow
	$cos = cos(deg2rad($degree));
	$sin = sin(deg2rad($degree));
	$x = $x + $width * $cos;
	$y = $y - $width * $sin;
	for ($i = 0; $i < $width; $i++) {
		$x -= $cos;
		$y += $sin;
		imagettftext($im, $size, $angle, round($x), round($y), imagecolorallocate($im, $bgcolor['red'], $bgcolor['green'], $bgcolor['blue']), $font, $text);
		$bgcolor = array(
			'red' => $bgcolor['red'] + $steps['red'],
			'green' => $bgcolor['green'] + $steps['green'],
			'blue' => $bgcolor['blue'] + $steps['blue'],
		);
	}
}

// settings
$font = '../fonts/Tuffy.ttf';
$text = 'Programmierer-Forum.de';
// image
header("Content-type: image/gif");
$im = imagecreate(400, 50);
// colors
$white = imagecolorallocate($im, 255, 255, 255);
$black = imagecolorallocate($im, 0, 0, 0);
$grey = imagecolorallocate($im, 175, 175, 175);
// display text
imagettfshadow($im, 20, 0, 10, 30, $font, $text, 10, $grey, $white, 315);
imagettftext($im, 20, 0, 10, 30, $black, $font, $text);
// display image
imagegif($im);
imagedestroy($im);