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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 |
|---|---|
| 116 | $trackback_id = $wpdb->insert_id; |
| 117 | |
| 118 | /** |
| 119 | * Fires after a trackback is added to a post. |
| 120 | * |
| 121 | * @since 1.2.0 |
| 122 | * |
| 123 | * @param int $trackback_id Trackback ID. |
| 124 | */ |
| 125 | do_action( 'trackback_post', $trackback_id ); |
| 126 | trackback_response( 0 ); |
| 127 | } |
| 128 | |