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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 |
|---|---|
| 5397 | * |
| 5398 | * @since 5.6.0 |
| 5399 | * |
| 5400 | * @param int $post_id Post ID. |
| 5401 | * @param WP_Post $post Post object. |
| 5402 | * @param bool $update Whether this is an existing post being updated. |
| 5403 | * @param null|WP_Post $post_before Null for new posts, the WP_Post object prior |
| 5404 | * to the update for updated posts. |
| 5405 | */ |
| 5406 | do_action( 'wp_after_insert_post', $post_id, $post, $update, $post_before ); |
| 5407 | } |
| 5408 | |
| 5409 | // |
| 5410 | // Comment, trackback, and pingback functions. |
| 5411 | // |
| 5412 | |
| 5413 | /** |
| 5414 | * Add a URL to those already pinged. |
| 5415 | * |