如何通过PHP将3个图像合并为1个图像？ [英] How can I merge 3 images into 1 image via PHP?

问题描述

我真的找不到成功做到这一点的方法..我搜索谷歌这个，它或者在图像周围有黑色阴影或者所有图像都没有重叠。你能帮忙吗？

I really cannot find a way to successfully do it.. I've searched google for this and it either has black shades around the images or all the images don't overlap. Could you please help?

我对PHP很好;我会给自己一个2/5 ..如果有人愿意帮我，我真的很感激。

I am alright at PHP; I'd give myself a 2/5.. I would really appreciate if someone would be willing to help me out.

我正在寻找一个简单的api类似于：

I'm looking for a simple api that goes something like:

$color=$_GET['color'];
$face=$_GET['face'];
$hat=$_GET['hat'];

echo '<img src="avatar.php?color=$color&face=$face&hat=$hat">';

感谢提前的任何帮助。我也可以从我对其他语言的知识中理解php，所以不要害怕与我交谈技术;但不是太技术性。

Thanks for any help in advance. I can understand php from my knowledge of other languages, too, so don't be afraid to talk technical with me; but not too technical.

推荐答案

关于这个答案有很多评论，所以我发布这个作为答案。

there are so many comments on this answer so I'm posting this as an answer.

让它在我的电脑上工作。

Got it working on my pc.

使用svens代码：

use svens code :

    $images = array( $_GET['color'], $_GET['face'], $_GET['hat'] );

    // Allocate new image
    $img = imagecreatetruecolor(58, 75);
    // Make alpha channels work
    imagealphablending($img, true);
    imagesavealpha($img, true);

    foreach($images as $fn) {
        // Load image
        $cur = imagecreatefrompng($fn);
        imagealphablending($cur, true);
        imagesavealpha($cur, true);

        // Copy over image
        imagecopy($img, $cur, 0, 0, 0, 0, 58, 75);

        // Free memory
        imagedestroy($cur);
    }   

    header('Content-Type: image/png');  // Comment out this line to see PHP errors
    imagepng($img);

?>

我将这样的图像重命名为更容易：

I renamed your images like this so its easier :

微笑：a.png

耳机：b.png

蓝色：c.png

smile : a.png
headset : b.png
blue : c.png

原来问题在于分层。在重命名图像后，将一个放在另一个

后，使用此URL - 它将起作用（在我的电脑上工作）。

after you rename the images, use this url -- it will work(works on my pc).

YOUR_FILE.php？hat = b.png& color = c.png& face = a.png

YOUR_FILE.php?hat=b.png&color=c.png&face=a.png

这仍然会给你一个黑色的背景。我不确定你在服务器上的文件中是否有与上面完全相同的代码 - 因为我在你的链接上玩了图像顺序而没有帮助。尝试在不同的文件上复制粘贴这个完全相同的代码，然后尝试。玩弄订单并查看结果。

This will still give you a black background. I am not sure if you have the exact same code as above in your file on the server - because I played around with the image order on your link and it does not help. Try copy-pasting this exact same code on a different file and then trying. Play around with the order and check the results.

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