PHP操作ZipArchive实现文件上传下载功能

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电视猫时间： 2024-07-08 15:07:16

To implement file upload and download functionality using PHP and ZipArchive, follow these steps:

1. File Upload:

Create Upload Form: Create an HTML form with a file input field to allow users to select files for upload.

HTML

<!DOCTYPE html>
<html>
<head>
    <title>File Upload</title>
</head>
<body>
    <h1>File Upload</h1>
    <form action="upload.php" method="post" enctype="multipart/form-data">
        <label for="file">Select files to upload:</label>
        <input type="file" id="file" name="files[]" multiple>
        <br>
        <input type="submit" value="Upload">
    </form>
</body>
</html>

Handle Upload in PHP: Create a PHP script (upload.php) to process the uploaded files.

PHP

<?php

if (isset($_FILES['files'])) {
    $files = $_FILES['files'];

    $zip = new ZipArchive(); // Create ZipArchive object
    $zipFileName = "uploaded_files.zip"; // Set zip file name

    if ($zip->open($zipFileName, ZIPARCHIVE::CREATE) !== true) {
        echo "Error creating zip file: " . $zip->getArchiveError();
        exit;
    }

    foreach ($files['error'] as $key => $error) {
        if ($error === UPLOAD_ERR_OK) {
            $fileName = $files['name'][$key];
            $tmpName = $files['tmp_name'][$key];

            if ($zip->addFile($tmpName, $fileName) === false) {
                echo "Error adding file to zip: " . $fileName;
            }
        }
    }

    $zip->close(); // Close zip file

    if (file_exists($zipFileName)) {
        // Download the zip file
        header('Content-Type: application/zip');
        header('Content-Disposition: attachment; filename=' . $zipFileName);
        header('Content-Length: ' . filesize($zipFileName));
        readfile($zipFileName);
        unlink($zipFileName); // Delete the temporary zip file after download
        exit;
    } else {
        echo "Error creating zip file";
    }
}

2. File Download:

Provide Download Link: Generate a download link on a separate page or within the upload page after successful upload.

HTML

<a href="download.php">Download Uploaded Files</a>

Create Download Script: Create a PHP script (download.php) to handle the file download.

PHP

<?php

$zipFileName = "uploaded_files.zip"; // Set zip file name

if (file_exists($zipFileName)) {
    // Download the zip file
    header('Content-Type: application/zip');
    header('Content-Disposition: attachment; filename=' . $zipFileName);
    header('Content-Length: ' . filesize($zipFileName));
    readfile($zipFileName);
    unlink($zipFileName); // Delete the temporary zip file after download
    exit;
} else {
    echo "Uploaded file not found";
}

This setup provides basic file upload and download functionality using PHP and ZipArchive. You can enhance it by adding error handling, progress tracking, and more robust file management.