# Migrating Themes with Functions
Elementor Pro IntermediateIn this example, we'll add theme locations to the original theme using simple functions. After migration, the theme will look as follows:
# Themes Files
The new function.php file:
<?php
function theme_prefix_register_elementor_locations( $elementor_theme_manager ) {
$elementor_theme_manager->register_all_core_location();
}
add_action( 'elementor/theme/register_locations', 'theme_prefix_register_elementor_locations' );
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The new header.php file:
<!doctype html>
<html <?php language_attributes(); ?>>
<head>
<meta charset="<?php bloginfo( 'charset' ); ?>">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="profile" href="http://gmpg.org/xfn/11">
<?php wp_head(); ?>
</head>
<body <?php body_class(); ?>>
<?php
// Elementor `header` location
if ( ! function_exists( 'elementor_theme_do_location' ) || ! elementor_theme_do_location( 'header' ) ) {
get_template_part( 'template-parts/header' );
}
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The new footer.php file:
<?php
// Elementor `footer` location
if ( ! function_exists( 'elementor_theme_do_location' ) || ! elementor_theme_do_location( 'footer' ) ) {
get_template_part( 'template-parts/footer' );
}
wp_footer();
?>
</body>
</html>
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The new index.php file:
<?php
get_header();
if ( is_archive() || is_home() || is_search() ) {
// Elementor `archive` location
if ( ! function_exists( 'elementor_theme_do_location' ) || ! elementor_theme_do_location( 'archive' ) ) {
get_template_part( 'template-parts/archive' );
}
} elseif ( is_singular() ) {
// Elementor `single` location
if ( ! function_exists( 'elementor_theme_do_location' ) || ! elementor_theme_do_location( 'single' ) ) {
get_template_part( 'template-parts/single' );
}
} else {
// Elementor `404` location
if ( ! function_exists( 'elementor_theme_do_location' ) || ! elementor_theme_do_location( 'single' ) ) {
get_template_part( 'template-parts/404' );
}
}
get_footer();
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The new archive.php file:
<?php
get_header();
// Elementor `archive` location
if ( ! function_exists( 'elementor_theme_do_location' ) || ! elementor_theme_do_location( 'archive' ) ) {
get_template_part( 'template-parts/archive' );
}
get_footer();
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The new single.php file:
<?php
get_header();
// Elementor `single` location
if ( ! function_exists( 'elementor_theme_do_location' ) || ! elementor_theme_do_location( 'single' ) ) {
get_template_part( 'template-parts/single' );
}
get_footer();
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The new 404.php file:
<?php
get_header();
// Elementor `single` location
if ( ! function_exists( 'elementor_theme_do_location' ) || ! elementor_theme_do_location( 'single' ) ) {
get_template_part( 'template-parts/404' );
}
get_footer();
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The new search.php file:
<?php
get_header();
// Elementor `archive` location
if ( ! function_exists( 'elementor_theme_do_location' ) || ! elementor_theme_do_location( 'archive' ) ) {
get_template_part( 'template-parts/search' );
}
get_footer();
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