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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 |
|---|---|
| 3017 | |
| 3018 | if ( $updated ) { |
| 3019 | /** |
| 3020 | * Fires once a post has been added to the sticky list. |
| 3021 | * |
| 3022 | * @since 4.6.0 |
| 3023 | * |
| 3024 | * @param int $post_id ID of the post that was stuck. |
| 3025 | */ |
| 3026 | do_action( 'post_stuck', $post_id ); |
| 3027 | } |
| 3028 | } |
| 3029 | |
| 3030 | /** |
| 3031 | * Un-sticks a post. |
| 3032 | * |
| 3033 | * Sticky posts should be displayed at the top of the front page. |
| 3034 | * |
| 3035 | * @since 2.7.0 |