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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 |
|---|---|
| 3999 | * Filter whether global terms are enabled. |
| 4000 | * |
| 4001 | * Passing a non-null value to the filter will effectively short-circuit the function, |
| 4002 | * returning the value of the 'global_terms_enabled' site option instead. |
| 4003 | * |
| 4004 | * @since 3.0.0 |
| 4005 | * |
| 4006 | * @param null $enabled Whether global terms are enabled. |
| 4007 | */ |
| 4008 | $filter = apply_filters( 'global_terms_enabled', null ); |
| 4009 | if ( ! is_null( $filter ) ) |
| 4010 | $global_terms = (bool) $filter; |
| 4011 | else |
| 4012 | $global_terms = (bool) get_site_option( 'global_terms_enabled', false ); |
| 4013 | } |
| 4014 | return $global_terms; |
| 4015 | } |
| 4016 | |
| 4017 | /** |