wp_install action-hook . WP 3.9.0

Fires after a site is fully installed.

Usage

add_action( 'wp_install', 'action_function_name_2927' );
function action_function_name_2927( $user ){
	// action...
}

$user(WP_User)

The site owner.

Where the hook is called

do_action( 'wp_install', $user );

Where the hook is used (in WP core)