如何压缩文件夹并使用PHP下载？

Question

我有一个名为"data"的文件夹.此"data"文件夹包含文件"filecontent.txt"和另一个名为"Files"的文件夹."Files"文件夹包含"info.txt"文件.所以它是文件夹结构中的文件夹.

我必须将此文件夹"data"(使用php)以及其中的文件和文件夹压缩,然后下载压缩文件.

我已经尝试了http://www.php.net/manual/en/zip.examples.php上提供的示例. 这些示例不起作用.我的PHP版本是5.2.10

请帮忙.

我写了这段代码.

<?php
$zip = new ZipArchive;
if ($zip->open('check/test2.zip',ZIPARCHIVE::CREATE) === TRUE) {
    if($zip->addEmptyDir('newDirectory')) {
        echo 'Created a new directory';
    } else {
        echo 'Could not create directory';
    }
    $zipfilename="test2.zip";
    $zipname="check/test2.zip";

    header('Content-Type: application/zip');
    header('Content-disposition: attachment; filename=check/test1.zip');    //header('Content-Length: ' . filesize( $zipfilename));
    readfile($zipname);  //$zip->close(); } else { echo failed';
}
?>

文件已下载但无法解压缩

Answer 1

您需要以递归方式在目录中添加文件.像这样(未经测试):

function createZipFromDir($dir, $zip_file) {
    $zip = new ZipArchive;
    if (true !== $zip->open($zip_file, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE)) {
        return false;
    }
    zipDir($dir, $zip);
    return $zip;
}

function zipDir($dir, $zip, $relative_path = DIRECTORY_SEPARATOR) {
    $dir = rtrim($dir, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
    if ($handle = opendir($dir)) {
        while (false !== ($file = readdir($handle))) {
            if (file === '.' || $file === '..') {
                continue;
            }
            if (is_file($dir . $file)) {
                $zip->addFile($dir . $file, $file);
            } elseif (is_dir($dir . $file)) {
                zipDir($dir . $file, $zip, $relative_path . $file);
            }
        }
    }
    closedir($handle);
}

然后打电话 $zip = createZipFromDir('/tmp/dir', 'files.zip');

为了获得更多的胜利,我建议您在这里阅读SPLDirectoryIterator

Answer 2

========= 对我来说唯一的解决方案！！!==========

放置所有子文件夹和子文件及其结构：

<?php
$the_folder = 'path/foldername';
$zip_file_name = 'archived_name.zip';


$download_file= true;
//$delete_file_after_download= true; doesnt work!!


class FlxZipArchive extends ZipArchive {
    /** Add a Dir with Files and Subdirs to the archive;;;;; @param string $location Real Location;;;;  @param string $name Name in Archive;;; @author Nicolas Heimann;;;; @access private  **/

    public function addDir($location, $name) {
        $this->addEmptyDir($name);

        $this->addDirDo($location, $name);
     } // EO addDir;

    /**  Add Files & Dirs to archive;;;; @param string $location Real Location;  @param string $name Name in Archive;;;;;; @author Nicolas Heimann
     * @access private   **/
    private function addDirDo($location, $name) {
        $name .= '/';
        $location .= '/';

        // Read all Files in Dir
        $dir = opendir ($location);
        while ($file = readdir($dir))
        {
            if ($file == '.' || $file == '..') continue;
            // Rekursiv, If dir: FlxZipArchive::addDir(), else ::File();
            $do = (filetype( $location . $file) == 'dir') ? 'addDir' : 'addFile';
            $this->$do($location . $file, $name . $file);
        }
    } // EO addDirDo();
}

$za = new FlxZipArchive;
$res = $za->open($zip_file_name, ZipArchive::CREATE);
if($res === TRUE) 
{
    $za->addDir($the_folder, basename($the_folder));
    $za->close();
}
else  { echo 'Could not create a zip archive';}

if ($download_file)
{
    ob_get_clean();
    header("Pragma: public");
    header("Expires: 0");
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Cache-Control: private", false);
    header("Content-Type: application/zip");
    header("Content-Disposition: attachment; filename=" . basename($zip_file_name) . ";" );
    header("Content-Transfer-Encoding: binary");
    header("Content-Length: " . filesize($zip_file_name));
    readfile($zip_file_name);

    //deletes file when its done...
    //if ($delete_file_after_download) 
    //{ unlink($zip_file_name); }
}
?>