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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 |
|---|---|
| 17 | echo $author; |
| 18 | } |
| 19 | |
| 20 | function get_comment_author_email() { |
| 21 | global $comment; |
| 22 | return apply_filters('get_comment_author_email', $comment->comment_author_email); |
| 23 | } |
| 24 | |
| 25 | function comment_author_email() { |
| 26 | echo apply_filters('author_email', get_comment_author_email() ); |
| 27 | } |
| 28 | |
| 29 | function comment_author_email_link($linktext='', $before='', $after='') { |
| 30 | global $comment; |
| 31 | $email = apply_filters('comment_email', $comment->comment_author_email); |
| 32 | if ((!empty($email)) && ($email != '@')) { |
| 33 | $display = ($linktext != '') ? $linktext : $email; |
| 34 | echo $before; |
| 35 | echo "<a href='mailto:$email'>$display</a>"; |