$path = PUBLIC_DIR.'/images/';    //待压缩文件夹父目录

$zipPath = PUBLIC_DIR.'/images_zip/'; //压缩文件保存目录

!is_dir($zipPath) ? mkdir($zipPath, 0755, true) : '';

// Initialize archive object

$zip = new ZipArchive();

$dir_list = scandir($path);

if (empty($dir_list)) {

    return false;

}

foreach($dir_list as $dir_name) {

    if ($dir_name == '.' || $dir_name == '..') {

        continue;

    }

    $dir_path = $path.$dir_name;    //待压缩目录

    if (!is_dir($dir_path)) {

        continue;

    }

    $zipFile = $zipPath.$dir_name.'.zip';   //压缩包名称

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

    $file_list = scandir($dir_path);    //文件名

    foreach ($file_list as $file_name) {

        if ($file_name == '.' || $file_name == '..') {

            continue;

        }

        $zip->addFile($dir_path.'/'.$file_name, $file_name);    //第二个参数使压缩文件名为待压缩文件原名（否则压缩包里会有多级目录）

    }

    $zip->close();

}