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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 |
|---|---|
| 1813 | /** |
| 1814 | * Fires when the comment status is in transition. |
| 1815 | * |
| 1816 | * @since 2.7.0 |
| 1817 | * |
| 1818 | * @param int|string $new_status The new comment status. |
| 1819 | * @param int|string $old_status The old comment status. |
| 1820 | * @param WP_Comment $comment Comment object. |
| 1821 | */ |
| 1822 | do_action( 'transition_comment_status', $new_status, $old_status, $comment ); |
| 1823 | /** |
| 1824 | * Fires when the comment status is in transition from one specific status to another. |
| 1825 | * |
| 1826 | * The dynamic portions of the hook name, `$old_status`, and `$new_status`, |
| 1827 | * refer to the old and new comment statuses, respectively. |
| 1828 | * |
| 1829 | * Possible hook names include: |
| 1830 | * |
| 1831 | * - `comment_unapproved_to_approved` |