duanhemou9834
2014-01-04 12:42
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使用PHP将PNG图像(在具有透明度的photoshop中制作)叠加到JPG上

I have two images. I need to place one png image with some transparent layers on a jpeg.

This code SAVES the image in the dir as "merged.png" instead of showing it -

<?php
header("Content-Type: image/png");
$width = 200;
$height = 200;

$base_image = imagecreatefromjpeg("image.jpg");
$top_image = imagecreatefrompng("miod.png");
$merged_image = "merged.png";

imagesavealpha($top_image, true);
imagealphablending($top_image, true);

imagecopy($base_image, $top_image, 100, 100, 100, 100, $width, $height);
imagepng($base_image, $merged_image);
?>

-How do I display it on the page itself?

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  • download12749 2014-01-04 13:00
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    imagepng has two main modes of operation. With a single parameter, it outputs the file directly, so it'll show up in the browser. With two parameters, as you have, it wills save the image from the first parameter into the file given in the second parameter.

    So -- just drop your second parameter, and things should work fine:

     imagepng($base_image);
    
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