PHP: download any file from ftp-server to harddrive?

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旧巷少年郎
旧巷少年郎 2021-01-25 23:31

i really really need your help. I\'m successfully setting up a connection to my ftp server. However I can\'t figure out how I can download a dynamic file from my server. I guess

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  • 2021-01-25 23:40

    Try to save it locally first and then push it back to browser.

    Use that code to save your file locally.

    <?php
                    // define some variables
            $folder_path = "YOUR FOLDER PATH";
            $local_file = "LOCAL FILE PATH";
            $server_file = "SERVER FILE PATH";
    
            //-- Connection Settings
            $ftp_server = "IP ADDRESS"; // Address of FTP server.
            $ftp_user_name = "USERNAME"; // Username
            $ftp_user_pass = "PASSWORD"; // Password
            #$destination_file = "FILEPATH";
    
            // set up basic connection
            $conn_id = ftp_connect($ftp_server);
    
            // login with username and password
            $login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
    
            // try to download $server_file and save to $local_file
            if (ftp_get($conn_id, $local_file, $server_file, FTP_BINARY)) {
                echo "Successfully written to $local_file\n";
            } else {
                echo "There was a problem\n";
            }
    
            // close the connection
            ftp_close($conn_id);
    ?>
    

    I also found this, maybe it could help you

    My FTP-Server always responded "bool(false)" instead of presenting me a directory-listing. I had to add ftp_pasv($conn_id, true); right after the $login_result = ftp_login(...); line. After that it just worked fine.

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  • 2021-01-25 23:48

    This works for me:

    $fname = "file.xxx";
    
    $conn = ftp_connect(FTP_URL);
    if(ftp_login($conn, FTP_USER, FTP_PWD))
    {
        if(ftp_chdir($conn, FTP_DIR))
        {
            $th = fopen('php://temp', 'r+');
            if(ftp_fget($conn, $th, $fname, FTP_ASCII, 0))
            {
                rewind($th);
                $data = stream_get_contents($th);
            }
        }
    }
    
    header("Content-Disposition: attachment; filename=$fname");
    echo $data;
    

    This way you dont have to save the file locally first

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  • 2021-01-26 00:01

    tempnam()

    When I used tempnam() it changed the file extension to .tmp. This may cause problems, so I don't recommend doing it this way. At the very least, you should change the extension back to what it was in the original filename.

    You can achieve this using pathinfo() in conjunction with regexp and rename(), after you've ftp'ed the file.

    mimetype

    Regarding mimetype: You only need this information if you want the browser to display the file you send to the user. For downloads, the browser only needs to know it's a binary file, and the browser or user can guess from the extension.

    If you still want to check the mimetype, you'll have to wait until the file is on your server, so the mime-checking code will go inside the if(ftp_get()) block.

    ftp

    You haven't shown your connection code (so I'm assuming), but you will need the full path for the file you're pulling from FTP. If the ftp_get() step is failing, you're probably requesting an invalid file.

    Otherwise, you will have to ftp_chdir() after connecting and logging in so you're in the correct remote folder.

    code

    This code worked for me:

    <?php
    $ftp = ftp_connect('server');
    ftp_login($ftp, 'username', 'password');
    $file = '/media.banzaimonkey.net/images/forums/boasas_banner_07.gif';
    
    $tempFile = tempnam("/tmp", "FOO");
    
    if(ftp_get($ftp, $tempFile, $file, FTP_BINARY)){
        echo 'success!';
    } else {
        echo 'ffffail';
    }
    ?>

    If that code doesn't work for you, you may have a problem with permissions, configuration, or some other environment-specific issue.

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