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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 |
|---|---|
| 4546 | * Filters whether global terms are enabled. |
| 4547 | * |
| 4548 | * Passing a non-null value to the filter will effectively short-circuit the function, |
| 4549 | * returning the value of the 'global_terms_enabled' site option instead. |
| 4550 | * |
| 4551 | * @since 3.0.0 |
| 4552 | * |
| 4553 | * @param null $enabled Whether global terms are enabled. |
| 4554 | */ |
| 4555 | $filter = apply_filters( 'global_terms_enabled', null ); |
| 4556 | if ( ! is_null( $filter ) ) |
| 4557 | $global_terms = (bool) $filter; |
| 4558 | else |
| 4559 | $global_terms = (bool) get_site_option( 'global_terms_enabled', false ); |
| 4560 | } |
| 4561 | return $global_terms; |
| 4562 | } |
| 4563 | |
| 4564 | /** |