I want to make a form where you can fill FTP login server and get option to upload ZIP file. The script works apart from the last part (UNZIP the file) I want to perform UNZIP uploaded file. Does anyone know what is the problem? TIA
<?php if (isset($_POST['Submit'])) { $ftp_server = $ftp = $_POST['ftp']; $ftp_user_name = $username = $_POST['username']; $ftp_user_pass = $password = $_POST['password']; if (!empty($_FILES['upload']['name'])) { $ch = curl_init(); $file1 = $localfile = $_FILES['upload']['name']; $fp = fopen($file1, 'r'); $file = '/htdocs/file.zip'; // 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 upload $file if (ftp_fput($conn_id, $file, $fp, FTP_ASCII)) { echo "Successfully uploaded ftp://".$username.":".$password."@".$ftp.$file."n"; $zip = new ZipArchive; $zip->open($file); $zip->extractTo('ftp://'.$username.':'.$password.'@'.$ftp.'/htdocs'); $zip->close(); } else { echo "There was a problem while uploading $filen"; } // close the connection and the file handler ftp_close($conn_id); fclose($fp); } } ?> <?php if(isset($error)){ echo $error; } ?> <form action="upload.php" method="post" enctype="multipart/form-data"> <div> <label for="upload">Select file</label> <input name="upload" type="file" /> <br> Ftp Server: <br> <input type="text" name="ftp" value="<?php if(isset($ftp)){ echo $ftp; } ?>"> <br> Username: <br> <input type="text" name="username" value="<?php if(isset($username)){ echo $username; } ?>"> <br> Password: <br> <input type="text" name="password" value="<?php if(isset($password)){ echo $password; }else{ echo '123456';} ?>"> <input type="submit" name="Submit" value="Upload" /> </div> </form>
THE ERROR
Successfully uploaded
ftp://:@ftp.***.com/htdocs/file.zip Warning: ZipArchive::extractTo(): Invalid or uninitialized Zip object in C:xampphtdocsupload.php on line 29
Warning: ZipArchive::close(): Invalid or uninitialized Zip object in C:xampphtdocsupload.php on line 30
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Answer
The ZipArchive
does not support URL wrappers.
And your code does not make much sense anyway:
You first upload
$localfile
to FTP server as/htdocs/file.zip
$file = '/htdocs/file.zip'; ftp_fput($conn_id, $file, $fp, FTP_ASCII)
And then you try to open
/htdocs/file.zip
, as it it were a local file$zip->open($file);
But such local file does not exists.
And then you try to extract that non existing file to FTP URL. And that’s not supported.
See ZipArchive::open(): support stream wrappers. It’s about
open
, but ifopen
does not support wrappers, theextactTo
won’t either (it’s a way more difficult to support). See a comment by cmb:Anyhow, ZipArchive::open() is not supposed to accept any stream wrapper URLs, but only real file paths. Its documentation doesn’t tell otherwise, and neither does the man page on “Supported Protocols and Wrappers”[1]:
| PHP comes with many built-in wrappers for various URL-style | protocols for use with the filesystem functions […]
However, ZipArchive::open() is not a filesystem function for that matter.
So, actually, this is not a bug, not even a documentation bug in the strict sense. Therefore I’m changing to feature request.
As your code is just wrong, its difficult to guess, what you are actually trying to do. I can imagine these two possibilities.
You wanted to upload a ZIP file to FTP server and unzip it there. It’s simply not possible to unzip a ZIP file on an FTP server.
You wanted to extract a local ZIP to FTP server. While it may seem that it’s possible with use of URL wrapper in the
ZipArchive:extractTo
call, it’s not. As I’ve shown above. Nor there is any other way to extract local ZIP file to FTP server with some simple one-liner in PHP.All you can do, is to extract the ZIP file locally (on the web server); and then upload it file-by-file to the FTP server.
Create a temporary folder and extract (
ZipArchive::extractTo
) the ZIP archive there.Upload the temporary folder to the FTP server.
Delete the temporary folder.
Also note that you upload the file using ASCII mode. A ZIP format is binary. By uploading binary file in ASCII mode, you damage it.
ftp_fput($conn_id, $file, $fp, FTP_ASCII);