准备自定义下载

时间:2011-01-26 22:13:01

标签: php javascript download drupal-7

我想创建一个允许自定义下载组合的表单,就像jQuery UI download page上的表单一样。用户选择他/她需要的组件并组装自定义下载,(g)压缩并发送出去。这是如何运作的?我怎么写类似的东西?

可选:既然我想在Drupal 7网站上实现这一点,也欢迎提供有用模块的建议。

3 个答案:

答案 0 :(得分:2)

简单实施:

<?php
    // base directory containing files that we're adding
    $dir = 'images/';

    // name of our zip file. best to use a unique name here
    $zipfile = "test.zip";

    // get a directory listing, remove self/parent directories, and reindex array
    $files = array_values(array_diff(scandir($dir), array('.', '..')));

    // form has been submitted
    if (isset($_POST['submit'])) {
        // initialize the zip file
        $output = new ZipArchive();
        $output->open($zipfile, ZIPARCHIVE::CREATE);
        // add files to archive
        foreach ($_POST['file'] as $num=>$file) {
            // make sure the files are valid
            if (is_file($dir . $file) && is_readable($dir . $file)) {
                // add it to our zip file
                $output->addFile($dir . $file);
            }
        }
        // write zip file to filesystem
        $output->close();
        // direct user's browser to the zip file
        header("Location: " . $zipfile);
        exit();
    } else {
        // display filenames with checkboxes
        echo '<form method="POST">' . PHP_EOL;
        for ($x=0; $x<count($files); $x++) {
            echo '  <input type="checkbox" name="file[' . $x . ']" value="' . $files[$x] . '">' . $files[$x] . '<br>' . PHP_EOL;
        }
        echo '  <input type="submit" name="submit" value="Submit">' . PHP_EOL;
        echo '</form>' . PHP_EOL;
    }
?>

已知错误:不预先检查$zipfile是否存在。如果是,则将附加到。

答案 1 :(得分:2)

jnpcl的答案有效。但是,如果要在不需要重定向的情况下下载文件,请执行以下操作:

// Once you created your zip file as say $zipFile, you can output it directly
// like the following
header('Content-Description: File Transfer');
header('Content-Type: application/zip');
header('Content-Disposition: attachment; filename='.basename($zipFile));
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize($zipFile));
ob_clean();
flush();
readfile($zipFile);

http://php.net/manual/en/function.readfile.php

答案 2 :(得分:1)

我对这个drupal一无所知,但可能是php或类似的一些帮助编辑器...但是这可能对你有帮助...... PHP ZIP

从未使用它,但它不会很难接缝!

希望有所帮助