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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 |
|---|---|
| 2098 | |
| 2099 | if ( $updated ) { |
| 2100 | /** |
| 2101 | * Fires once a post has been added to the sticky list. |
| 2102 | * |
| 2103 | * @since 4.6.0 |
| 2104 | * |
| 2105 | * @param int $post_id ID of the post that was stuck. |
| 2106 | */ |
| 2107 | do_action( 'post_stuck', $post_id ); |
| 2108 | } |
| 2109 | } |
| 2110 | |
| 2111 | /** |
| 2112 | * Un-stick a post. |
| 2113 | * |
| 2114 | * Sticky posts should be displayed at the top of the front page. |
| 2115 | * |
| 2116 | * @since 2.7.0 |