Form redirect based on part of a form value.

How do you have the redirect URL be based on part of the value of a form? For example,

<form method="post"><input type="text" name="url" value="http://www.youtube.com/watch?v=WXt0G90iEXw" style="width: 400px"><input type="submit" value="Submit"></form>

would have the URL that you end up at be

http://www.domain.com/v/WXt0G90iEXw/

 

Do you want example code for JS or PHP (client vs serverside)?

 

If it needs to be in the script, here's the code

<?php
$v = $_GET['v'];

echo <<< END
<title>Title.</title>
<H1>Blah</H1>
<form method="post">
<input type="text" name="url" value="http://www.youtube.com/watch?v=$v" style="width: 400px">
<input type="submit" value="Get Download Link"></form>
<hr>
END;

  $tube = new youtube();
  // Only required for restricted videos 
  // $tube->username = "userid";
  // $tube->password = "password";
  $download_link = $tube->get($_POST['url']);
  if($download_link) { ?>
<P>3. Right click <a href="<?=$download_link;?>">this link</a>.
<BR>4. Save the file as "newname.flv", with 'newname' being what ever you want the file to be called.
  <?php } else { ?>
    Error locating download URL.  
  <?php } 
}
echo <<< END
  <H1>Last 20 Downloads</H1>
END;
  include('downloads.html');
?>

PHP:

I tried messing with

<?php if($_SERVER['REQUEST_METHOD'] == 'POST') : $v = $_POST['v'];
header('Location: [plain]http://www.domain.info/v/[/plain]' . $v . '/'); else:?>

PHP:

at the top of the script, but it liked to spit out an error.

 

Could it be:

<?php header('location: '.$_POST['url']); ?>

Code (markup):

 

I think I might have a way to get it, by just using the URL to get it, instead of POST using GET on the form.

$download_link = $tube->get($_GET['url']);

PHP:

works if you use the full URL, if it's encoded...

http://www.domain.com/index.php?url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D9lp0IWv8QZY

Though I'm trying to get it to work with

http://www.domain.com/index.php?url=9lp0IWv8QZY

so you then only need the '9lp0IWv8QZY' part, making it then possible to have

http://www.domain.com/v/9lp0IWv8QZY/ . Something like

$download_link = $tube->get('http://www.youtube.com/watch/v/' $_GET['url']);

PHP:

except this gives out errors like

Parse error: syntax error, unexpected T_VARIABLE in /home/virtual/site68/fst/var/www/html/index.php on line 56
Parse error: syntax error, unexpected ':' in /home/virtual/site68/fst/var/www/html/index.php on line 56

depending on if I use " or '.

 

Sorry, forgot about this thread.

// REPLACE _GET WITH SOMETHING ELSE, SANITIZE INPUTS
preg_match('/http:\/\/(www\.)?youtube(\.[a-z]+){1,2}\/watch\?v=([a-z0-9_-]*)(&([a-z]+)=([a-z0-9_-])+)*?/is', $_GET['url'], $videoid);

$tld = $videoid[2];
$url = $videoid[0];
$vid = $videoid[3];

PHP: