PHP多图合并加水印

来凤姐般的图片·······················哈哈

我就直接放自己的业务代码了，基本复制张贴就可以用了

public function createImg($link,array $data){

        //生成二维码
        ob_clean();
        QRcode::png($link, "../temp/qrcode.jpg", 3, 5, 1);

        $qrcode = imagecreatefromstring(file_get_contents("../temp/qrcode.jpg"));

        //生成白色背景图
        $bc = imagecreatetruecolor(800,1100);
        $color = imagecolorallocate($bc,255, 255, 255);
        //填充颜色
        imagefill($bc, 0, 0, $color);
        imagejpeg($bc,"../temp/backgoround.jpg");

        $background = imagecreatefromstring(file_get_contents("../temp/backgoround.jpg"));
        $main = imagecreatefromstring(file_get_contents($data["good_main_img"]));
        //对二维码进行采样
        list($qrW, $qrH) = getimagesize("../temp/qrcode.jpg");
        //对广告图进行采样
        list($mainW, $mainH) = getimagesize($data["good_main_img"]);
        //合成图片
        imagecopymerge($background, $main, 0, 0, 0, 0, $mainW, $mainH, 100);

        imagecopymerge($background, $qrcode, 520, 800, 0, 0, $qrW, $qrH, 100);

        //文字
        $black = imagecolorallocate($background, 255, 107, 75);//字体颜色
        imagefttext($background, 15, 0, 560, 1080, $black, "../temp/zz.ttf", "长按二维码领券购买");
        imagefttext($background, 30, 0, 100, 1000, $black, "../temp/zz.ttf", "[券后价]{$data["currte_price"]}元");
        imagefttext($background, 30, 0, 200, 850, $black, "../temp/zz.ttf", "原价{$data["good_price"]}元");
        imagejpeg($background,"./static/img/temp/good_qrcode.jpg");



    }

使用下面的函数 更容易调整合成图片的大小

 imagecopyresampled($background,$qrcode,240,300,0,0,190,190,$qrW,$qrH);