Re: javascript to php in the same page

From	Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups	comp.lang.php
Subject	Re: javascript to php in the same page
Date	2016-02-14 16:43 +0000
Organization	A noiseless patient Spider
Message-ID	<87lh6n44zd.fsf@bsb.me.uk> (permalink)
References	<n9pph5$1qss$1@gioia.aioe.org> <87r3gf48b7.fsf@bsb.me.uk> <n9q7f5$gg7$1@gioia.aioe.org>

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alex <alex@nomailno.it> writes:

> <html>
> <body>
> Select a file to upload:
> <input type="file" id="myFile" onchange="myFunction()" size="50" >
> <p id="demo"></p>
> <script>
> function myFunction() {
> var vx = document.getElementById("myFile").value;
> document.getElementById("demo").innerHTML = vx;
> }
> </script>
> </body>
> </html>
>
>
> with the code above I can select a file in my pc and can have its name
> inner the variable vx;
> I need have(to pass) this value (file's name), inner a php variable.

Well that's not really what I was asking but I don't think you are going
to tell me what you are really trying to do.  I have no idea what an
inner variable is -- PHP has variables -- but you can give this value to
a server-side script simply by making the value of a form which gets
submitted:

<!DOCTYPE html>
<html>
  <head>
    <script>
     function myFunction() {
          var vx = document.getElementById("myFile").value;
          document.getElementById("filename").value = vx;
          document.getElementById("name_form").submit();
     }
    </script>
  </head>
  <body>
    Select a file to upload:
    <input type="file" id="myFile" onchange="myFunction()" size="50" >
    <p id="demo"></p>
    <form id="name_form" action="file.php" method=post>
      <input type=text id=filename name=filename
             value="<?= $_POST["filename"] ?>">
    </form>
    File name: <?= $_POST["filename"]; ?>
  </body>
</html>

This omits all kind of important things like quoting and validating the
form contents, checking for errors and so on.

-- 
Ben.

Thread

javascript to php in the same page alex <alex@nomailno.it> - 2016-02-14 12:48 +0100
  Re: javascript to php in the same page Tim Streater <timstreater@greenbee.net> - 2016-02-14 12:12 +0000
  Re: javascript to php in the same page Luuk <luuk@invalid.lan> - 2016-02-14 15:00 +0100
  Re: javascript to php in the same page Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-02-14 15:31 +0000
    Re: javascript to php in the same page alex <alex@nomailno.it> - 2016-02-14 16:45 +0100
      Re: javascript to php in the same page Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2016-02-14 11:08 -0500
      Re: javascript to php in the same page Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-02-14 16:43 +0000
        Re: javascript to php in the same page Luuk <luuk@invalid.lan> - 2016-02-14 17:50 +0100
          Re: javascript to php in the same page "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-02-14 18:17 +0100
            Re: javascript to php in the same page Luuk <luuk@invalid.lan> - 2016-02-14 19:42 +0100
        Re: javascript to php in the same page Tim Streater <timstreater@greenbee.net> - 2016-02-14 19:21 +0000
          Re: javascript to php in the same page Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-02-14 21:40 +0000
            Re: javascript to php in the same page Erwin Moller <erwinmollerusenet@xs4all.nl> - 2016-02-15 14:49 +0100
              Re: javascript to php in the same page Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-02-15 19:20 +0000
      Re: javascript to php in the same page Arno Welzel <usenet@arnowelzel.de> - 2016-02-15 13:51 +0100
        Re: javascript to php in the same page praider650@gmail.com - 2016-08-17 03:23 -0700

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