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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 |
|---|---|
| 97 | function comment_author_email( $comment_ID = 0 ) { |
| 98 | $author_email = get_comment_author_email( $comment_ID ); |
| 99 | /** |
| 100 | * Filter the comment author's email for display. |
| 101 | * |
| 102 | * @since 1.2.0 |
| 103 | * |
| 104 | * @param string $author_email The comment author's email address. |
| 105 | */ |
| 106 | echo apply_filters( 'author_email', $author_email ); |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Display the html email link to the author of the current comment. |
| 111 | * |
| 112 | * Care should be taken to protect the email address and assure that email |
| 113 | * harvesters do not capture your commentors' email address. Most assume that |
| 114 | * their email address will not appear in raw form on the blog. Doing so will |
| 115 | * enable anyone, including those that people don't want to get the email |