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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 |
|---|---|
| 3948 | * |
| 3949 | * The dynamic portions of the hook name, `$new_status` and `$post->post_type`, |
| 3950 | * refer to the new post status and post type, respectively. |
| 3951 | * |
| 3952 | * @since 2.3.0 |
| 3953 | * |
| 3954 | * @param int $post_id Post ID. |
| 3955 | * @param WP_Post $post Post object. |
| 3956 | */ |
| 3957 | do_action( "{$new_status}_{$post->post_type}", $post->ID, $post ); |
| 3958 | } |
| 3959 | |
| 3960 | // |
| 3961 | // Trackback and ping functions |
| 3962 | // |
| 3963 | |
| 3964 | /** |
| 3965 | * Add a URL to those already pinged. |
| 3966 | * |