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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 |
---|---|
2074 | * Fires when the comment status is in transition from one specific status to another. |
2075 | * |
2076 | * The dynamic portions of the hook name, `$old_status`, and `$new_status`, |
2077 | * refer to the old and new comment statuses, respectively. |
2078 | * |
2079 | * @since 2.7.0 |
2080 | * |
2081 | * @param object $comment Comment object. |
2082 | */ |
2083 | do_action( "comment_{$old_status}_to_{$new_status}", $comment ); |
2084 | } |
2085 | /** |
2086 | * Fires when the status of a specific comment type is in transition. |
2087 | * |
2088 | * The dynamic portions of the hook name, `$new_status`, and `$comment->comment_type`, |
2089 | * refer to the new comment status, and the type of comment, respectively. |
2090 | * |
2091 | * Typical comment types include an empty string (standard comment), 'pingback', |
2092 | * or 'trackback'. |