在图像上添加水印并将其保存为图像而不是php文件

Question

我有PHP上传脚本，我需要在用户上传后在图像上添加水印。

我尝试了很多方法，但最后都给了你预览图像的PHP路径

我需要在此链接http://php.net/manual/en/image.examples-watermark.php中执行相同操作，但请将其保存到实际图像中以获得此类图像路径＆＃34; my_new_image_with_watermark.jpg＆＃34; 不仅仅是file.php

代码实际上是：

<?php
// Load the stamp and the photo to apply the watermark to
$stamp = imagecreatefrompng('stamp.png');
$im = imagecreatefromjpeg('photo.jpeg');

// Set the margins for the stamp and get the height/width of the stamp image
$marge_right = 10;
$marge_bottom = 10;
$sx = imagesx($stamp);
$sy = imagesy($stamp);

// Copy the stamp image onto our photo using the margin offsets and the photo 
// width to calculate positioning of the stamp. 
imagecopy($im, $stamp, imagesx($im) - $sx - $marge_right, imagesy($im) - $sy - $marge_bottom, 0, 0, imagesx($stamp), imagesy($stamp));

// Output and free memory
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
?>

感谢

Answer 1

而不是：

// Output and free memory
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);

写：

$filename = '/foo/bar.png';
imagepng($im, $filename);
imagedestroy($im);