Let's say that I have a file (file1.php) with a simple form with the action attribute:
echo'
<form action="foo.php" method="post">
Name: <input type="text" name="username" /><br />
Email: <input type="text" name="email" /><br />
<input type="submit" name="submit" value="Submit me!" />
</form>';
$another_var = $user_id+5;
Let's say the foo.php looks something like this:
$sql ... SELECT user_id, username... WHERE username = $_POST['username']; //or so
echo 'We got the user ID. it is in a variable!';
$user_id = $row['user_id'];
As you see, I need the variable $user_id made in foo.php actually to be used in the main file file1.php. Is there any way to do this? I though that return $user_id would work but I was wrong :-/ Some notes to have into account:
in file1.php there are two forms: one to upload a file (example above) and another to save all the data into a database (that's the reason I need the variable name).
the example is just that, an example. I'm not really adding 5 to the variable requested, but I don't want to copy and paste 100 lines of code to overwhelm everybody.
the variable is also refreshed with javascript, So I see it there but I don't really know how to assign a javascript variable to a php variable (if possible).
THANKS!!!