如何压缩文件夹并使用php下载它? [英] How to zip a folder and download it using php?

问题描述

我有一个名为"data"的文件夹.该数据"文件夹包含一个文件"filecontent.txt"和另一个名为文件"的文件夹. 文件"文件夹包含一个"info.txt"文件. 所以它是文件夹结构内的一个文件夹.

I have folder named "data". This "data" folder contains a file "filecontent.txt" and another folder named "Files". The "Files" folder contains a "info.txt" file. So it is a folder inside folder structure.

我必须将此文件夹数据"(使用php)连同其中的文件和文件夹一起压缩，然后下载压缩文件.

I have to zip this folder "data"(using php) along with the file and folder inside it, and download the zipped file.

我尝试了 http://www.php.net上可用的示例/manual/zh-CN/zip.examples.php 这些示例不起作用.我的PHP版本是5.2.10

I have tried the examples available at http://www.php.net/manual/en/zip.examples.php These examples did not work. My PHP version is 5.2.10

请帮助.

我已经编写了这段代码.

I have written this code.

<?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

file downloaded but could not unzip

推荐答案

您需要以递归方式在目录中添加文件.像这样(未经测试):

You need to recursively add files in the directory. Something like this (untested):

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);
}

然后致电$zip = createZipFromDir('/tmp/dir', 'files.zip');

为了获得更大的胜利，我建议您阅读SPL DirectoryIterator 此处

For even more win I'd recommend reading up on the SPL DirectoryIterator here

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