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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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910 | } |
911 |
|
912 | /** |
913 | * Filters the number of locations listed per menu in the drop-down select. |
914 | * |
915 | * @since 3.6.0 |
916 | * |
917 | * @param int $locations Number of menu locations to list. Default 3. |
918 | */ |
919 | $locations_listed_per_menu = absint( apply_filters( 'wp_nav_locations_listed_per_menu', 3 ) ); |
920 |
|
921 | $assigned_locations = array_slice( $locations_assigned_to_this_menu, 0, $locations_listed_per_menu ); |
922 |
|
923 | // Adds ellipses following the number of locations defined in $assigned_locations. |
924 | if ( ! empty( $assigned_locations ) ) { |
925 | printf( |
926 | ' (%1$s%2$s)', |
927 | implode( ', ', $assigned_locations ), |
928 | count( $locations_assigned_to_this_menu ) > count( $assigned_locations ) ? ' …' : '' |