How to Add Dynamic Header and Footer

You need to add different keys to your $data array.

PHP Code:

$data['header'] = 'Header';
$data['home'] = 'Home';
$data['footer'] = 'Footer';

<?php echo $header; ?>
<?php echo $home; ?>
<?php echo $footer; ?>

PHP Code:

$data['title']['header'] = 'Header';
$data['title']['home'] = 'Home';
$data['title']['footer'] = 'Footer';

<?php echo $title['header']; ?>
<?php echo $title['home']; ?>
<?php echo $title['footer']; ?>