index.php

<?php echo form_open('accounts/index') . PHP_EOL; ?>
<?php if (authentication_errors()): ?>
<p class="error"><?php echo authentication_errors(); ?></p>
<?php endif; ?>

<p><label for="account-email">Your email address:</label><br />
<input type="text" id="account-email" name="email" /></p>

<p><label for="account-password">Your password:</label><br />
<input type="password" id="account-password" name="password" /></p>

<p><input type="submit" value="Login" /></p>

<?php echo form_close() . PHP_EOL; ?>