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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 |
|---|---|
| 340 | echo $author; |
| 341 | } |
| 342 | |
| 343 | function get_comment_author_email() { |
| 344 | global $comment; |
| 345 | return apply_filters('get_comment_author_email', $comment->comment_author_email); |
| 346 | } |
| 347 | |
| 348 | function comment_author_email() { |
| 349 | echo apply_filters('author_email', get_comment_author_email() ); |
| 350 | } |
| 351 | |
| 352 | function get_comment_author_link() { |
| 353 | global $comment; |
| 354 | $url = get_comment_author_url(); |
| 355 | $author = get_comment_author(); |
| 356 | |
| 357 | if ( empty( $url ) || 'http://' == $url ) |
| 358 | $return = $author; |