PHP

filter wordpress

function wporg_css_body_class( $classes ) {
    if ( ! is_admin() ) {
        $classes[] = 'wporg-is-awesome';
    }
    return $classes;
}
add_filter( 'body_class', 'wporg_css_body_class' );

add filter in wordpress

function wporg_css_body_class( $classes ) {
    if ( ! is_admin() ) {
        $classes[] = 'wporg-is-awesome';
    }
    return $classes;
}
add_filter( 'body_class', 'wporg_css_body_class' );