使用PHP从url添加文件创建zip

Question

我想知道以下是否可以做到并希望有人可以帮助我.

我想创建一个"下载zip"功能,但当个人点击下载时,该按钮会从我的外部域中获取图像,然后将它们捆绑成一个zip,然后为它们下载.

我已经检查了如何做到这一点,我找不到任何好方法来抓取图像并强制他们进行拉链下载.

我希望有人可以提供帮助

Answer 1

# define file array
$files = array(
    'http://google.com/images/logo.png',
    'http://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Wikipedia-logo-en-big.png/220px-Wikipedia-logo-en-big.png',
);

# create new zip object
$zip = new ZipArchive();

# create a temp file & open it
$tmp_file = tempnam('.', '');
$zip->open($tmp_file, ZipArchive::CREATE);

# loop through each file
foreach ($files as $file) {
    # download file
    $download_file = file_get_contents($file);

    #add it to the zip
    $zip->addFromString(basename($file), $download_file);
}

# close zip
$zip->close();

# send the file to the browser as a download
header('Content-disposition: attachment; filename="my file.zip"');
header('Content-type: application/zip');
readfile($tmp_file);
unlink($tmp_file);

注意:此解决方案假定您已allow_url_fopen启用.否则请查看使用cURL下载文件.