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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 |
|---|---|
| 5500 | $pung = preg_split( '/\s/', $pung ); |
| 5501 | |
| 5502 | /** |
| 5503 | * Filters the list of already-pinged URLs for the given post. |
| 5504 | * |
| 5505 | * @since 2.0.0 |
| 5506 | * |
| 5507 | * @param string[] $pung Array of URLs already pinged for the given post. |
| 5508 | */ |
| 5509 | return apply_filters( 'get_pung', $pung ); |
| 5510 | } |
| 5511 | |
| 5512 | /** |
| 5513 | * Retrieve URLs that need to be pinged. |
| 5514 | * |
| 5515 | * @since 1.5.0 |
| 5516 | * @since 4.7.0 `$post_id` can be a WP_Post object. |
| 5517 | * |
| 5518 | * @param int|WP_Post $post_id Post Object or ID |