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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.
This hook occurs 3 times in this file.
| Line | Code |
|---|---|
| 96 | } |
| 97 | |
| 98 | function comment_ID() { |
| 99 | global $comment; |
| 100 | echo $comment->comment_ID; |
| 101 | } |
| 102 | |
| 103 | function comment_author() { |
| 104 | global $comment; |
| 105 | $author = apply_filters('comment_author', $comment->comment_author); |
| 106 | if (empty($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)) : |
| 125 | echo $author; |
| 126 | else: |
| 127 | echo "<a href='$url' rel='external'>$author</a>"; |
| 128 | endif; |
| 129 | } |
| 130 | |
| Line | Code |
| 231 | } |
| 232 | return $url; |
| 233 | } |
| 234 | |
| 235 | function comment_author_rss() { |
| 236 | global $comment; |
| 237 | if (empty($comment->comment_author)) { |
| 238 | echo 'Anonymous'; |
| 239 | } else { |
| 240 | echo htmlspecialchars(apply_filters('comment_author', $comment->comment_author)); |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | function comment_text_rss() { |
| 245 | global $comment; |
| 246 | $comment_text = str_replace('<trackback />', '', $comment->comment_content); |
| 247 | $comment_text = str_replace('<pingback />', '', $comment_text); |
| 248 | $comment_text = apply_filters('comment_text', $comment_text); |
| 249 | $comment_text = strip_tags($comment_text); |