pre_user_search │ action-hook │ WP 1.0

Usage

add_action( 'pre_user_search', 'wp_kama_pre_user_search_action' );

/**
 * Function for `pre_user_search` action-hook.
 * 
 * @param  $array 
 *
 * @return void
 */
function wp_kama_pre_user_search_action( $array ){

	// action...
}

$array

-

Where the hook is called

do_action_ref_array( 'pre_user_search', array( &$this ) );

Where the hook is used in WordPress