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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 |
|---|---|
| 3249 | |
| 3250 | if ( $updated ) { |
| 3251 | /** |
| 3252 | * Fires once a post has been removed from the sticky list. |
| 3253 | * |
| 3254 | * @since 4.6.0 |
| 3255 | * |
| 3256 | * @param int $post_id ID of the post that was unstuck. |
| 3257 | */ |
| 3258 | do_action( 'post_unstuck', $post_id ); |
| 3259 | } |
| 3260 | } |
| 3261 | |
| 3262 | /** |
| 3263 | * Returns the cache key for wp_count_posts() based on the passed arguments. |
| 3264 | * |
| 3265 | * @since 3.9.0 |
| 3266 | * @access private |
| 3267 | * |