[PHP知识库]PHP 下载压缩文件

array(2) {
  [0] => array(2) {
    ["img"] => string(111) "/Uploads/Staff/绍兴/测试/1626231191SDoQId.jpg,/Uploads/Staff/绍兴/测试/1626231191ikHoYb.jpg"
    ["k"] => string(6) "测试"
  }
  [1] => array(2) {
    ["img"] => string(111) "/Uploads/Staff/绍兴/测试/1626231191SDoQId.jpg,/Uploads/Staff/绍兴/测试/1626231191ikHoYb.jpg"
    ["k"] => string(7) "测试3"
  }
}
string(30) "浙江"

 // 单图片压缩下载
    private function downZip($imgs, $name){
        header('content-type:image/jpg');
        $filename = './tmp.zip';
        $zip = new \ZipArchive();
        $zip->open($filename, \ZipArchive::OVERWRITE | \ZIPARCHIVE::CREATE | \ZIPARCHIVE::CM_STORE);
        foreach ($imgs as $key=>$vo) {
            $fileData = file_get_contents(dirname($_SERVER['SCRIPT_FILENAME']).$vo['img']);
            $temp = explode('.', $vo['img']);
            $ext = $temp[count($temp)-1];
            if ($fileData) {
                $zip->addFromString($vo['k']. '.' . $ext, $fileData);
            }
        }
        $zip->close();

        $file = fopen($filename, "r");
        Header("Content-type: application/octet-stream");
        Header("Accept-Ranges: bytes");
        Header("Accept-Length: " . filesize($filename));
        Header("Content-Disposition: attachment; filename=$name.zip");
        //一次只传输1024个字节的数据给客户端
        $buffer = 1024; //
        while (!feof($file)) {
            //将文件读入内存
            $file_data = fread($file, $buffer);
            //每次向客户端回送1024个字节的数据
            echo $file_data;
        }
        fclose($file);
        unlink($filename); //删除文件
    }

    // 多图片压缩下载
    private function downimgsZip($imgs, $name){
        header('content-type:image/jpg');
        $filename = './tmp.zip';
        $zip = new \ZipArchive();
        $zip->open($filename, \ZipArchive::OVERWRITE | \ZIPARCHIVE::CREATE | \ZIPARCHIVE::CM_STORE);
        foreach ($imgs as $key => $value){
            $imgs[$key]['img'] = explode(',',$value['img']);
        }

        foreach ($imgs as $key=>$vo) {
            foreach ($vo['img'] as $k=>$v){
                $fileData = file_get_contents(dirname($_SERVER['SCRIPT_FILENAME']).$v);
                $temp = explode('.', $v);
                $ext = $temp[count($temp)-1];
                $rand = mt_rand(0000,9999);
                if ($fileData) {
                    $zip->addFromString($vo['k']. '_' . $rand . '.' . $ext, $fileData);
                }
            }
        }

        $zip->close();

        $file = fopen($filename, "r");
        Header("Content-type: application/octet-stream");
        Header("Accept-Ranges: bytes");
        Header("Accept-Length: " . filesize($filename));
        Header("Content-Disposition: attachment; filename=$name.zip");
        //一次只传输1024个字节的数据给客户端
        $buffer = 1024; //
        while (!feof($file)) {
            //将文件读入内存
            $file_data = fread($file, $buffer);
            //每次向客户端回送1024个字节的数据
            echo $file_data;
        }
        fclose($file);
        unlink($filename); //删除文件
    }