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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 |
|---|---|
| 106 | if (empty($author)) { |
| 107 | echo 'Anonymous'; |
| 108 | } else { |
| 109 | echo $author; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | function comment_author_email() { |
| 114 | global $comment; |
| 115 | echo apply_filters('author_email', $comment->comment_author_email); |
| 116 | } |
| 117 | |
| 118 | function comment_author_link() { |
| 119 | global $comment; |
| 120 | $url = apply_filters('comment_url', $comment->comment_author_url); |
| 121 | $author = apply_filters('comment_author', $comment->comment_author); |
| 122 | if (!$author) $author = 'Anonymous'; |
| 123 | |
| 124 | if (empty($url)) : |