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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 |
---|---|
4757 | $pung = preg_split( '/\s/', $pung ); |
4758 |
|
4759 | /** |
4760 | * Filters the list of already-pinged URLs for the given post. |
4761 | * |
4762 | * @since 2.0.0 |
4763 | * |
4764 | * @param string[] $pung Array of URLs already pinged for the given post. |
4765 | */ |
4766 | return apply_filters( 'get_pung', $pung ); |
4767 | } |
4768 |
|
4769 | /** |
4770 | * Retrieve URLs that need to be pinged. |
4771 | * |
4772 | * @since 1.5.0 |
4773 | * @since 4.7.0 `$post_id` can be a WP_Post object. |
4774 | * |
4775 | * @param int|WP_Post $post_id Post Object or ID |