hy guys,
i really need your help. i've succesfully connected to ftp server via php.
i'm listing all files that are on the server. if i click a file the browser should prompt a download window to download the file.
i've absolutely no idea how to do that. which method am i going to use. ftp_get kind of confuses me. it says i have to declare a local_file as well. i just want a file on the server to download to my harddrive.
how can i do that?
regards matt
The remote file has to first be downloaded to your server before you can send it to the user. It's invisible to the user, but you don't have a choice. PHP won't let the browser talk directly to the FTP server.
Create a separate php script that calls ftp_get for a specific file, stores it temporarily to your server to allow the user to download it.
Something like:
<?php
//assume the page was called like download.php?filename=downloaded.pdf
header('Content-Disposition: attachment; filename="'.$_GET['filename'].'"');
$tempFile = 'temp'.rand();
ftp_get($ftp, $tempFile, $_GET['filename'], FTP_BINARY);
readfile($tempFile);
You may add code to delete the tempFile too.
If you provide a link to a file that can't be read by the browser (such as a php file, audio, video, etc.) it will ask you to download the file.
The other way is to use PHP headers on a page and print out the page, and link to that page. http://www.ryboe.com/tutorials/php-headers-force-download
Related
I'm trying to archive a big file using PHP and send it to the browser for download. The problem is the file is located on a remote machine and the only way to get it is via HTTP. So imagine this is my file: https://dropboxcontent.com/user333/3yjdsgf/video1.mp4
It's a direct link and I can download the file using wget, or curl anything. When a user wants to download it, I first fetch the file to the server, then zip it up and then send it to the user. Well, if the file is really large, the user has to sit there waiting for the server to download it before he sees the download dialog box in his browser. Is there a way for me to start the download of the file https://dropboxcontent.com/user333/3yjdsgf/video1.mp4 (let's say I'm downloading it into a local /tmp/video.mp4) and simultaneously start putting into an archive and streaming it into the user's browser?
I'm using this library to zip it up: https://github.com/barracudanetworks/ArchiveStream-php, which works great, but the bottleneck is still fetching the file to the server's local filesystem.
Here is my code:
$f = file_get_contents("https://dropboxcontent.com/user333/3yjdsgf/video1.mp4");
$zip->add_file('big/hello.mp4', $f);
The problem is line $f = file_get_contents("https://dropboxcontent.com/user333/3yjdsgf/video1.mp4"); takes too long if the file is really big.
As suggested in the comments of the original post by Touch Cat Digital Inc, I found the answer here: https://stackoverflow.com/a/6914986/1927991
A chunked stream of the remote file was the answer. Very clever.
Im using fopen to let users download a audio in the code below as the code attribute doesn't always works in all situations and browsers.
Does this downloads the file to my server temporarily or lets the user download it from the external sourced
<?php
$file=fopen('link','r');
header("Content-Type:audio/mp4");
header("Content-Disposition: attachment; filename='example.m4a' ");
fpassthru($file);
?>
All the data will be read (from wherever the file handle points) by your PHP program on your server. That may involve copying data from a remote URL to your server. That data may exist entirely in RAM. It may hit swap space on the disk.
The PHP program then outputs it to the browser.
The browser never has direct access to 'link'.
I am currently trying to retrieve a file from an FTP-Server in order to make it accessible for the user to download. ftp_get() writes it to a path on the local machine, yes, but what I want is that it also shows up in the download history and counts as "normal" download from the internet but I didn't figure out how to do this yet. I also tried to link directly to the file in PHP with header("Location: ftp://username:password#ftp.server.com/myfile.file") but this was resulting in the browser showing the files contents (which I didn't want). Did I miss any header-Parameters ? Or is there a completely different way to do this ?
You won't be able to "redirect" a user to a file so he can download it using FTP. This is a HTTP-thing. Browsers provides FTP features and make it look like HTTP but, in fact, those are different stuff.
If this file is only accessible through FTP and it is on a remote server, the only way I can imagine so you cand 'redirect' this download to the user is:
Download the file from the FTP to your application server through FTP in PHP;
Send it to the user using PHP and appropriate file headers, something like this: https://stackoverflow.com/a/7263943/2802720
Hope it helps.
I have a php code on one server and a set of files on a download server. the download server is unable to run any php or other types of script. I want to make a download page on php server to download specific files on the download server but hide the file path on the download server. also I have traffic matter so I don't want the php server to get the whole of the file from the download server and make another temporary link for it to download because this make lots of traffic on the php server. how can i resolve this problem? is there any way to use client side safe scripts like js?
You can you the php read function for example:
//specify content type
header('Content-type: application/octet-stream');
readfile('pathtoyourfile')
I have asked this question today already but this time I want to know if I can achieve this via PHP since Javascript wasn't up to it.
I have a link to a file on another server. If i provide this link to my users the headers are pushed out to download that file from that server.
Is there a way for me to capture those headers and file and redirect the download to the user? I would like to do this so that I can change the filename of the download since it is
always 'file.zip'.
Is this possible with PHP?
Thank you for any help.
You can download the file to your server using curl and serve it correctly(with a Content-Disposition header). As long as you are using HTTP, there's no way to send just the header and let another server stream the content directly to the client.
You could do this, and you can do it in several ways.
1) (simple) copy the file to your server, and rename it. Point your download links to this copy.
2) (harder) Create a stub php file, called , read the file from the remote server within php, and stream the content to the script output. This will need you to set appropriate headers, etc. as well as setting up your webserver to parse through PHP.
Seriously, I'd go with option 1. (assumes you have a legal right to serve the content, etc.)
Maybe you can use a script similar to the following one:
<?php
header("HTTP/1.1 301 Moved Permanently");
header("Location: http://www.example.com/the_path/file.zip");
header('Content-Disposition: attachment; filename="alternate_filename.zip"');
exit();
?>