圖像ontop的在PHP

Question

這裏的圖像是頁面http://www.true-gamerz.net/test2.php

如果你看一下圖片

的鏈接，該等級的圖像是transpent但劑量沒有顯示它的屏幕 劑量任何人知道這是爲什麼發生？

下面是代碼

<? 

header('content-type: image/png'); 

$watermark = imagecreatefrompng('images/ranks/ranks_18.png'); 
$watermark_width = imagesx($watermark); 
$watermark_height = imagesy($watermark); 
$image = imagecreatetruecolor($watermark_width, $watermark_height); 
$image = imagecreatefrompng("images/card/test.png"); 
$size = getimagesize("images/card/test.png"); 
$dest_x = $watermark_width; 
$dest_y = $watermark_height; 
imagecopymerge($image, $watermark, 289, 4, 0, 0, $watermark_width, $watermark_height, 100); 
imagepng($image); 

imagedestroy($image); 
imagedestroy($watermark); 
?> 

Answer 1

imagecopymerge不支持Alpha通道

閱讀，瞭解解決方法：

http://www.php.net/manual/en/function.imagecopymerge.php#92787