Page Slug Body Class #wordpress

Add-Page-Slug-to-Body-Class.php

<?php // ignore - for gist formatting only

// Add Page Slug to Body Class
function add_slug_body_class( $classes ) {
	global $post;
	if ( isset( $post ) ) {
		$classes[] = $post->post_type . '-' . $post->post_name;
	}
	return $classes;
}
add_filter( 'body_class', 'add_slug_body_class' );

Add-Parent-Page-Slug-to-Child-Page-Body-Class.php

<?php // ignore - for gist formatting only

// Add Parent-Page-Slug to Child Page's Body Class
function add_parent_slug_to_child_body_class( $classes ) {
    global $post;

    // Check if current page has parent
    if ( $post->post_parent ) {
        $parent = get_post( $post->post_parent );
        $classes[] = 'parent-page-' . $parent->post_name;
    }

    return $classes;
}
add_filter( 'body_class', 'add_parent_slug_to_child_body_class' );