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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 |
|---|---|
| 1833 | * - `comment_approved_to_unapproved` |
| 1834 | * - `comment_spam_to_unapproved` |
| 1835 | * - `comment_unapproved_to_spam` |
| 1836 | * - `comment_approved_to_spam` |
| 1837 | * |
| 1838 | * @since 2.7.0 |
| 1839 | * |
| 1840 | * @param WP_Comment $comment Comment object. |
| 1841 | */ |
| 1842 | do_action( "comment_{$old_status}_to_{$new_status}", $comment ); |
| 1843 | } |
| 1844 | /** |
| 1845 | * Fires when the status of a specific comment type is in transition. |
| 1846 | * |
| 1847 | * The dynamic portions of the hook name, `$new_status`, and `$comment->comment_type`, |
| 1848 | * refer to the new comment status, and the type of comment, respectively. |
| 1849 | * |
| 1850 | * Typical comment types include 'comment', 'pingback', or 'trackback'. |
| 1851 | * |