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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 |
|---|---|
| 983 | |
| 984 | /** |
| 985 | * Filter whether the current post is open for comments. |
| 986 | * |
| 987 | * @since 2.5.0 |
| 988 | * |
| 989 | * @param bool $open Whether the current post is open for comments. |
| 990 | * @param int|WP_Post $post_id The post ID or WP_Post object. |
| 991 | */ |
| 992 | return apply_filters( 'comments_open', $open, $post_id ); |
| 993 | } |
| 994 | |
| 995 | /** |
| 996 | * Whether the current post is open for pings. |
| 997 | * |
| 998 | * @since 1.5.0 |
| 999 | * |
| 1000 | * @param int|WP_Post $post_id Post ID or WP_Post object. Default current post. |
| 1001 | * @return bool True if pings are accepted |