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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 |
---|---|
57 | /** |
58 | * Filter the comment author's name for display. |
59 | * |
60 | * @since 1.2.0 |
61 | * @since 4.1.0 The `$comment_ID` parameter was added. |
62 | * |
63 | * @param string $author The comment author's username. |
64 | * @param int $comment_ID The comment ID. |
65 | */ |
66 | $author = apply_filters( 'comment_author', $author, $comment_ID ); |
67 | echo $author; |
68 | } |
69 |
|
70 | /** |
71 | * Retrieve the email of the author of the current comment. |
72 | * |
73 | * @since 1.5.0 |
74 | * |
75 | * @param int $comment_ID Optional. The ID of the comment for which to get the author's email. Default current comment. |