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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 |
|---|---|
| 109 | /** |
| 110 | * Filter the comment author's email for display. |
| 111 | * |
| 112 | * @since 1.2.0 |
| 113 | * @since 4.1.0 The `$comment_ID` parameter was added. |
| 114 | * |
| 115 | * @param string $author_email The comment author's email address. |
| 116 | * @param int $comment_ID The comment ID. |
| 117 | */ |
| 118 | echo apply_filters( 'author_email', $author_email, $comment_ID ); |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Display the html email link to the author of the current comment. |
| 123 | * |
| 124 | * Care should be taken to protect the email address and assure that email |
| 125 | * harvesters do not capture your commentors' email address. Most assume that |
| 126 | * their email address will not appear in raw form on the blog. Doing so will |
| 127 | * enable anyone, including those that people don't want to get the email |