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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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867 | } |
868 |
|
869 | /** |
870 | * Filters the number of locations listed per menu in the drop-down select. |
871 | * |
872 | * @since 3.6.0 |
873 | * |
874 | * @param int $locations Number of menu locations to list. Default 3. |
875 | */ |
876 | $locations_listed_per_menu = absint( apply_filters( 'wp_nav_locations_listed_per_menu', 3 ) ); |
877 |
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878 | $assigned_locations = array_slice( $locations_assigned_to_this_menu, 0, $locations_listed_per_menu ); |
879 |
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880 | // Adds ellipses following the number of locations defined in $assigned_locations. |
881 | if ( ! empty( $assigned_locations ) ) { |
882 | printf( |
883 | ' (%1$s%2$s)', |
884 | implode( ', ', $assigned_locations ), |
885 | count( $locations_assigned_to_this_menu ) > count( $assigned_locations ) ? ' …' : '' |