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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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636 | } |
637 |
|
638 | /** |
639 | * Filter the number of locations listed per menu in the drop-down select. |
640 | * |
641 | * @since 3.6.0 |
642 | * |
643 | * @param int $locations Number of menu locations to list. Default 3. |
644 | */ |
645 | $assigned_locations = array_slice( $locations_assigned_to_this_menu, 0, absint( apply_filters( 'wp_nav_locations_listed_per_menu', 3 ) ) ); |
646 |
|
647 | // Adds ellipses following the number of locations defined in $assigned_locations |
648 | if ( ! empty( $assigned_locations ) ) { |
649 | printf( ' (%1$s%2$s)', |
650 | implode( ', ', $assigned_locations ), |
651 | count( $locations_assigned_to_this_menu ) > count( $assigned_locations ) ? ' …' : '' |
652 | ); |
653 | } |
654 | } |