On Tue, 10 Oct 2006 03:09:42 -0700 (PDT), Captain <[EMAIL PROTECTED]> wrote:
>
> Hi geeks,
> i am uploading a file to server. Uploading part is working fine. i
> am struggle with minor part. actually before uploading file, i am checking
> for existance of a file. If it is not exists, directly i am uploading that
> file. If it exists, i sud ask user that "This file is exits. Do You really
> want to Upload it?"...If YES, i will overwrite it. otherwise, i won't do
> anything.
> i am using javascript for popup windows. i used confirm()
> function(CANCEL / OK).
> the problem is, i am not able to get the variable value for php
> script. Of course, php is server side programming language & javascript
> client side programming language.
> Plz see my code & give the solution.
>
> See my progress:
>
> "upload.php"
>
> # Checking for the File existance
> if (file_exists($fullPath)) {
> echo "<script language='JavaScript'>if(confirm('This
> file is already Exists ! Do You Want to Duplicate ?')) { var s=1;} else {var
> s=0;} </script>";
>
> $decide="<script
> language='JavaScript'>document.write(s)</script>";
> echo "$decide";
> if (!$decide) {
> // Don't Upload
> exit;
> }
> else {
> // Upload the file
> }
>
> In this code, echo "$decide"; is printing whether 1 or 0. But by using that
> variable, i cudn't proceed further. Bcoz it is not useful for manipulating.
>
> * Is anyway to store that variable value in a static file, so that, i can
> proceed easily.
> * Is it possible to execute shell commands by javascript, so that i can
> create file & store this variable.
>
> If it is not possible, plz give any other solution.
> Expecting ur reply.
>
> Thanks in advance
> Prabhakaran.
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>
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This is my ideas:
If the file has already existed, the server-side script could save it in
a place temporarily, and marks the file by an unique identification
(such as md5 checksum). And then the the server-side tells the
client-side file exists and gives it the id. If the user choose
overwrite, the client-side only need to post the received id, do not
need to upload the file again.
--
Sorry for my poor English.
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