PHP下载远程文件
$filename = $request->get('filename');
$url = "https://file.yuchuantech.com/" . $filename;
//打开文件
if (empty($url) || false === @fopen($url, 'rb')) {
exit('文件不存在');
}
// 处理中文名
$filename = basename($url);
$user_agent = $_SERVER["HTTP_USER_AGENT"];
if (false !== stripos($user_agent, 'Trident')) {
$filename = rawurlencode($filename);
}
// 文件在其他节点服务器
$header = get_headers($url, 1);
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="' . $filename . '"');
header('Content-Length: ' . $header['Content-Length']);
readfile($url);
exit;