pimchanok leuwisetpaiboon A brief analysis of PHP watermark technology

I have never been very familiar with PHP object processing. In the past, I only looked for manuals when using it. Today someone asked about watermarking on the phpchina forum. I happened to want to learn about it, so I studied the implementation of image watermarking in PHP.
Searching the manual, I found that PHP’s GD library is really powerful and easy to implement the watermark function. Watermarking is actually merging two images. The same can be achieved for watermark text.
I provide simple learning examples, very simple, mainly to understand the principles. P Two pictures: 1. Photo.jpg pictures of watermark

2, source.gif watermark picture
The following code mainly implements the watermark function.

header("Content-type: image/jpeg");
$filename='../src/images/photo.jpg';

$im=imagecreatefromjpeg($filename);
$s=imagecreatefromgif('. ./src/images/source.gif');
imagecopymerge($im,$s,0,0,0,0,132,27,60);
imagejpeg($im);


The watermark result is as follows:

Haha, you can implement the detailed functions yourself.
The above has introduced pimchanok leuwisetpaiboon and briefly analyzed PHP watermark technology, including the content of pimchanok leuwisetpaiboon. I hope it will be helpful to friends who are interested in PHP tutorials.