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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 |
|---|---|
| 2949 | |
| 2950 | if ( $updated ) { |
| 2951 | /** |
| 2952 | * Fires once a post has been added to the sticky list. |
| 2953 | * |
| 2954 | * @since 4.6.0 |
| 2955 | * |
| 2956 | * @param int $post_id ID of the post that was stuck. |
| 2957 | */ |
| 2958 | do_action( 'post_stuck', $post_id ); |
| 2959 | } |
| 2960 | } |
| 2961 | |
| 2962 | /** |
| 2963 | * Un-sticks a post. |
| 2964 | * |
| 2965 | * Sticky posts should be displayed at the top of the front page. |
| 2966 | * |
| 2967 | * @since 2.7.0 |