尝试下载服务器生成的 .zip 文件时收到“错误网关错误 502”
我已经隔离了导致错误的线路;它的:
$zip->addFile($thumb->loadVersion($version['id']), $rank . "_" . $thumb->filename);
这是我的代码。我的脚本遍历用户上传的所有 .jpg 文件,将它们捆绑到一个大的 .zip 文件中,然后发送 .zip 文件的下载标头。
function downloadGalleryZip() {
$tmpfile = tempnam("tmp", "zip");
$zip = new ZipArchive();
$res = $zip->open($tmpfile, ZipArchive::OVERWRITE);
if ($res === TRUE) {
// loop through gallery
$sql = "SELECT * FROM files_versions WHERE file_id = ". $this->fileId . " AND deleted_on IS NULL ORDER BY rank ASC";
$result = db_query($sql);
$rank = 0;
while ($version = mysql_fetch_array($result)) :
$rank ++;
$rank = str_pad($rank, 3, '0', STR_PAD_LEFT);
$thumb = new fancyFile();
$zip->addFile($thumb->loadVersion($version['id']), $rank . "_" . $thumb->filename);
endwhile;
// $zip->addFromString('000_info.txt', 'Dieser Ordner wurde am ' . date("d.m.Y", time()) . ' heruntergeladen.');
$zip->close();
}
$filename = getCaptionFromFile($this->fileId) . ".zip";
header("Connection: Keep-Alive");
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=" . $filename);
header("Content-Type: application/zip" );
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header( 'Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length:' . filesize($tmpfile));
ob_clean();
flush();
}
我绝对没有“错误网关错误”的经验,非常感谢您的帮助!
谢谢,马特