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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 |
|---|---|
| 3776 | $pung = preg_split('/\s/', $pung); |
| 3777 | |
| 3778 | /** |
| 3779 | * Filter the list of already-pinged URLs for the given post. |
| 3780 | * |
| 3781 | * @since 2.0.0 |
| 3782 | * |
| 3783 | * @param array $pung Array of URLs already pinged for the given post. |
| 3784 | */ |
| 3785 | $pung = apply_filters( 'get_pung', $pung ); |
| 3786 | return $pung; |
| 3787 | } |
| 3788 | |
| 3789 | /** |
| 3790 | * Retrieve URLs that need to be pinged. |
| 3791 | * |
| 3792 | * @since 1.5.0 |
| 3793 | * @uses $wpdb |
| 3794 | * |