在画布中添加二维码加文字 和 压缩多图片到一个压缩包中

一、在画布中添加二维码加文字

<?php 

class Image{

　　　　/**     * 生成水印图片 图片结合底部文字     * @param string $file

     * @param string $code
     * @return array
     */
    public function getPicture($file = '', $text = '',$date = '')
    {
        try {
            $info = getimagesize($file); //获取图片信息
            $type = image_type_to_extension($info[2], false); // 获取图片扩展名
            $fun = "imagecreatefrom{$type}"; // 构建处理图片方法名-关键是这里
            $image = $fun($file); // 调用方法处理
            $font = public_path('/font/Century-Gothic.ttf'); // 字体文件
            $color = imagecolorallocate($image, 0, 0, 0); // 文字颜色

            $text = mb_convert_encoding($text, "html-entities", "utf-8");
            //获取文字宽度及高度
            $bounds = ImageTTFBBox(40, 0, $font, $text);
            $min_x = min(array($bounds[0], $bounds[2], $bounds[4], $bounds[6]));
            $max_x = max(array($bounds[0], $bounds[2], $bounds[4], $bounds[6]));
            $min_y = min(array($bounds[1], $bounds[3], $bounds[5], $bounds[7]));
            $max_y = max(array($bounds[1], $bounds[3], $bounds[5], $bounds[7]));
            $width = ($max_x - $min_x);
            $height = ($max_y - $min_y);

            $image_thumb = imagecreatetruecolor($info[0], $info[1] + $height);    //创建画布
            $background = imagecolorallocate($image_thumb, 255, 255, 255);　　//白色
            imagefill($image_thumb, 0, 0, $background);            //填充背景颜色
            //把二维码嵌入画布中
　　　　　　imagecopyresampled($image_thumb, $image, 0, 0, 0, 0, $info[0],
　　　　　　 $info[1], $info[0], $info[1]);
            //添加文字
　　　　imagettftext($image_thumb, 40, 0, ($info[0] - $width) / 2, 5 + $info[1]
 　　　　　　+ $height / 2, $color, $font, $text);
//            header("Content-Type:" . $info['mime']);
            $imageTypeFun = "image" . $type;
            $dir = public_path('/uploads/qr/picture/'.$date);
            if(!is_dir($dir)){
                @mkdir($dir,0777,true);
            }
            $src = $dir.'/'.$text . '.' . $type;
            //保存
            $path = '/uploads/qr/picture/'.$date .'/'. $text . '.' . $type;
            $imageTypeFun($image_thumb, $src);
            imagedestroy($background);
            ob_end_clean();
            return jsonReturn(0, '添加文字成功', $path);
        } catch (\Exception $e) {
            return jsonReturn(-1, $e->getMessage());
        }
    }

　public function erweima($device){
    require_once 'mobile/example/phpqrcode/phpqrcode.php';
    $device_sn = $device;
    $urls =$_SERVER['REQUEST_SCHEME'] . '://' . $_SERVER['SERVER_NAME    
　　$url = $urls."/Mobile/index.html?device_sn=".$device_sn;

    $url = urldecode($url);
    $qr_code_path = 'uploads/QRcodeDevice/'.date("Y-m-d").'/';
    if (!file_exists($qr_code_path)) {
        mkdir($qr_code_path);
    }
    /* 生成二维码 */
    $qr_code_file = $qr_code_path.$device_sn.'.png';
    \QRcode::png($url, $qr_code_file, 'H', 6,6);//最后一个6是控制白边大小
    $background = "mobile/font/back.png";
    $logo = "mobile/font/logo.png";
    $this->mark_photo($qr_code_file,$device_sn,$logo,$qr_code_file);
    $where = array('device_sn'=>$device);
   
    $arr['QRcode'] = $urls."/".$qr_code_file;
    return $arr;
}

//拼接图片,logo,文字
private function mark_photo($background,$text,$logo,$filename){

　　$info = getimagesize($background); // 获取图片信息

　　$type = image_type_to_extension($info[2],false); // 获取图片扩展名
　　$fun  = "imagecreatefrom{$type}"; // 构建处理图片方法名-关键是这里
　　$back= $fun($background); // 调用方法处理

    $color=imagecolorallocate($back,0,0,0);
　　 $logo_info = getimagesize($logo);

　　$logo_type = image_type_to_extension($info[2],false); // 获取图片扩展名

　　$logo_fun  = "imagecreatefrom{$logo_type}"; // 构建处理图片方法名-关键是这里

    $logo_w=$info[0];
    $logo_h=$info[1];
    $font="mobile/font/STYH.otf"; // 字体文件
    //imagettftext只认utf8字体，所以用iconv转换
    imagettftext($back, 21, 0, 40, 337, $color, $font, $text);//调二维码中字体位置
    //执行合成调整位置
    imagecopyresampled($back, $logo, 139,140, 0, 0, 65, 65, $logo_w, $logo_h);//调中间logo位置
　　$image_fun = 'image'.$type;
    $image_fun($back,$filename);//保存
    imagedestroy($back);
    imagedestroy($logo);
　　return json_encode('code'=>0,'msg'=>'成功'，array('filename'=>$filename));
}

/**
　*压缩文件
 * @return mixed
 */
public function getZipper()
{
    $zip = new \ZipArchive();
    // 图片路径
    $img_path = public_path('/uploads/qr');


    $img_files = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($img_path));


    $path = public_path('/uploads/download');

    if(!file_exists($path)){
        mkdir($path,0777,true);
    }
    $zip_file = $path.'/download.zip';

    $zip->open($zip_file, \ZipArchive::CREATE | \ZipArchive::OVERWRITE);

    $this->forZip($zip, $img_files, $img_path, '');

    $zip->close();
    return response()->download($zip_file);
}
//循环文件 添加压缩包中
private function forZip($zip, $files, $file_path, $new_path)
{
    foreach ($files as $name => $file) {
        // 我们要跳过所有子目录
        if ( ! $file->isDir()) {
            $filePath = $file->getRealPath();
            // 用 substr/strlen 获取文件名
            $relativePath = $new_path . substr($filePath, strlen($file_path));
            $zip->addFile($filePath, $relativePath);
        }
    }
}

}