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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 |
|---|---|
| 4052 | $pung = preg_split('/\s/', $pung); |
| 4053 | |
| 4054 | /** |
| 4055 | * Filter the list of already-pinged URLs for the given post. |
| 4056 | * |
| 4057 | * @since 2.0.0 |
| 4058 | * |
| 4059 | * @param array $pung Array of URLs already pinged for the given post. |
| 4060 | */ |
| 4061 | $pung = apply_filters( 'get_pung', $pung ); |
| 4062 | return $pung; |
| 4063 | } |
| 4064 | |
| 4065 | /** |
| 4066 | * Retrieve URLs that need to be pinged. |
| 4067 | * |
| 4068 | * @since 1.5.0 |
| 4069 | * |
| 4070 | * @global wpdb $wpdb WordPress database abstraction object. |