php合并图 把一张图做另一张图的背景图
参考:https://blog.csdn.net/lovetina2017/article/details/79046369
$path_1 = "http://hrtvoss.oss-cn-beijing.aliyuncs.com/dakuang.jpg";
$path_2 = "http://hrtvoss.oss-cn-beijing.aliyuncs.com/wechat/xcxqcode/q_349.jpg";
$image_1 = imagecreatefromjpeg($path_1);
$image_2 = imagecreatefromjpeg($path_2);
$image_3 = imageCreatetruecolor(imagesx($image_1),imagesy($image_1));
$color = imagecolorallocate($image_3, 255, 255, 255);
imagefill($image_3, 0, 0, $color);
imageColorTransparent($image_3, $color);
imagecopyresampled($image_3,$image_1,0,0,0,0,imagesx($image_1),imagesy($image_1),imagesx($image_1),imagesy($image_1));
imagecopymerge($image_3,$image_2, 80,60,0,0,imagesx($image_2),imagesy($image_2), 100);
imagepng($image_3,"images/circle.png");
imagedestroy($image_3);
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