Mgccl's Ivory Towerso tired

include('GIFEncoder.class.php');
$max_x = 468;
$max_y = 60;
$step = 10;
$font_file = 'cour.ttf';
$font_size = 10;
$color = pow(255,2);
$frames = 10;
//repeating frame
//first generate enough lines
$measuer = imagettfbbox(10,0,'cour.ttf','1');
$line_height = $measuer[1] - $measuer[7];
//measuer how many lines
 
$max_line = $max_y/$line_height;
$i = 0;
//Create a list of string
while($i<$frames){
	$n = 0;
	while($n<$max_line){
		$a = imagettfbbox($font_size, 0, $font_file, $tmp);
		if($a[2] - $a[0]>$max_x){
			$text[$i] .= $tmp."\n";
			++$n;
			$tmp = '';
		}else{
			$tmp .= chr(rand(65,90));
		}
	}
	++$i;
}
 
ob_start();
$i = 0;
while($i<$frames){
	$image = imagecreatetruecolor($max_x, $max_y);
	imagettftext($image,$font_size,0,0,$line_height,$color,$font_file,$text[$i]);
	imagegif($image);
	$imagedata[$i] = ob_get_contents();
	ob_clean();
	++$i;
}
 
//gifmerge
$gif = new GIFEncoder(
                            $imagedata,
                            100,
                            0,
                            2,
                            0, 0, 0,
                            "bin"
        ); 
header ( 'Content-type:image/gif' );
echo    $gif->GetAnimation ();