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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 |
|---|---|
| 154 | echo $author; |
| 155 | } |
| 156 | |
| 157 | function get_comment_author_email() { |
| 158 | global $comment; |
| 159 | return apply_filters('get_comment_author_email', $comment->comment_author_email); |
| 160 | } |
| 161 | |
| 162 | function comment_author_email() { |
| 163 | echo apply_filters('author_email', get_comment_author_email() ); |
| 164 | } |
| 165 | |
| 166 | function get_comment_author_link() { |
| 167 | global $comment; |
| 168 | $url = get_comment_author_url(); |
| 169 | $author = get_comment_author(); |
| 170 | |
| 171 | if ( empty( $url ) ) |
| 172 | $return = $author; |