Filter the navigation markup.
Parameters
- .
- ( 2.1.0 ) . .
- $nav_output
- ( string ) Opening container markup, nav, closing container markup. . . .
- $nav
- ( string ) Navigation list (`
- `). . . .
- $args
- ( array ) { Arguments for `wp_nav_menu()`. . . .
- $theme_location
- ( string ) Menu location ID. . . .
- $container
- ( string ) Container markup. . . .
- $menu_class
- ( string ) Class(es) applied to the `
- `. . . .
- $echo
- ( bool ) 0 to indicate `wp_nav_menu()` should return not echo. } . . .