Add a custom class name to Wordpress body tag?

Question

I\'d like to place a directive in my theme\'s functions.php file which appends a classname to the wordpress body tag. Is there a built-in API method for this?

For exampl

Answer 1

You can use the body_class filter, like so:

function my_plugin_body_class($classes) {
    $classes[] = 'foo';
    return $classes;
}

add_filter('body_class', 'my_plugin_body_class');

Although, obviously, your theme needs to call the corresponding body_class function.