multiple forms on a single PHP page - php

Question

Im having issues with a ''profile'' page where users will be able to change their username, email, name, password and so on but it seems to have conflicts when i have more than 1 form on the page as they all work individually?
I could be missing something obvious so if anyone could help id much appreciate it.
Base
<?php
require 'core/init.php';
include 'includes/overall/header.php';
?>
<h1><p>Hello <?php echo escape($user->data()->username); ?></a>!</p></h1>
<h4><p>You joined the MMOunition community <?php echo escape($user->data()->joined); ?></a></p></h4>
<alert_banner>
<?php
if(Session::exists('home')) {
echo '<p>', Session::flash('home'), '</p>';
}
?>
</alert_banner>
<br />
<form action="changeusername.php" method="post">
<div class="field">
<label for="username">Username:</label>
<input type="text" name="username" id="username" value="<?php echo escape($user->data()->username); ?>">
<input type="submit" value="Update">
<input type="hidden" name="token" value="<?php echo Token::generate(); ?>">
</div>
</form>
<br />
<form action="changepassword.php" method="post">
<div class="field">
<label for="password_current">Current password:</label>
<input type="password" name="password_current" id="password_current">
</div>
<div class="field">
<label for="password_new">New password:</label>
<input type="password" name="password_new" id="password_new">
</div>
<div class="field">
<label for="password_new_again">New password again:</label>
<input type="password" name="password_new_again" id="password_new_again">
<input type="submit" value="Change">
<input type="hidden" name="token" value="<?php echo Token::generate(); ?>">
</div>
</form>
</br>
<form action="changename.php" method="post">
<div class="field">
<label for="name">Name:</label>
<input type="text" name="name" id="name" value="<?php echo escape($user->data()->name); ?>">
<input type="submit" value="Update">
<input type="hidden" name="token" value="<?php echo Token::generate(); ?>">
</div>
</form>
<br />
<form action="changeemail.php" method="post">
<div class="field">
<label for="email">Change email address:</label>
<input type="text" name="email" id="email" value="<?php echo escape($user->data()->email); ?>">
<input type="submit" value="Update">
<input type="hidden" name="token" value="<?php echo Token::generate(); ?>">
</div>
</form>
<?php
include 'includes/overall/footer.php';
?>

Answer 1

Hello You haven't mentioned what problem you actualy facing but this seems like the problem is the unique identification of a form at server side
Please see this post
Multiple HTML Forms on One Page
Hope this will help ;)

Answer 2

Have each form action set to the current page, and use hidden inputs to determine what action is being taken. Using this method will prevent the user from being dropped onto a different page, and puts the action being taken into a variable that you can use or manipulate.
If you want to have separate PHP scripts for actual functions, use includes or requires.
<form action="" method="post">
<div class="field">
<label for="username">Username:</label>
<input type="text" name="username" id="username" value="<?php echo escape($user->data()->username); ?>">
<input type="submit" value="Update">
<input type="hidden" name="token" value="<?php echo Token::generate(); ?>">
<input type="hidden" name="action" value="changeUsername">
</div>
</form>
Then the PHP script gets the action from the POST and uses a switch to determine which functions to call.
if (isset($_REQUEST['action'])) {
$action = $_REQUEST['action'];
switch ($action) {
case "changeUsername":
changeUsername();
break;
case "changePassword":
...
As mentioned, if you want to have these functions in separate php files, you can use include or require.
This conveniently drops the user right back on the same page when they update information, so that they can make additional updates.