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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 |
|---|---|
| 4584 | $pung = preg_split( '/\s/', $pung ); |
| 4585 | |
| 4586 | /** |
| 4587 | * Filters the list of already-pinged URLs for the given post. |
| 4588 | * |
| 4589 | * @since 2.0.0 |
| 4590 | * |
| 4591 | * @param string[] $pung Array of URLs already pinged for the given post. |
| 4592 | */ |
| 4593 | return apply_filters( 'get_pung', $pung ); |
| 4594 | } |
| 4595 | |
| 4596 | /** |
| 4597 | * Retrieve URLs that need to be pinged. |
| 4598 | * |
| 4599 | * @since 1.5.0 |
| 4600 | * @since 4.7.0 `$post_id` can be a WP_Post object. |
| 4601 | * |
| 4602 | * @param int|WP_Post $post_id Post Object or ID |