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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 |
|---|---|
| 2913 | |
| 2914 | if ( $updated ) { |
| 2915 | /** |
| 2916 | * Fires once a post has been added to the sticky list. |
| 2917 | * |
| 2918 | * @since 4.6.0 |
| 2919 | * |
| 2920 | * @param int $post_id ID of the post that was stuck. |
| 2921 | */ |
| 2922 | do_action( 'post_stuck', $post_id ); |
| 2923 | } |
| 2924 | } |
| 2925 | |
| 2926 | /** |
| 2927 | * Un-sticks a post. |
| 2928 | * |
| 2929 | * Sticky posts should be displayed at the top of the front page. |
| 2930 | * |
| 2931 | * @since 2.7.0 |