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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 |
|---|---|
| 331 | global $comment; |
| 332 | if ( empty($comment->comment_author) ) |
| 333 | $author = __('Anonymous'); |
| 334 | else |
| 335 | $author = $comment->comment_author; |
| 336 | return apply_filters('get_comment_author', $author); |
| 337 | } |
| 338 | |
| 339 | function comment_author() { |
| 340 | $author = apply_filters('comment_author', get_comment_author() ); |
| 341 | echo $author; |
| 342 | } |
| 343 | |
| 344 | function get_comment_author_email() { |
| 345 | global $comment; |
| 346 | return apply_filters('get_comment_author_email', $comment->comment_author_email); |
| 347 | } |
| 348 | |
| 349 | function comment_author_email() { |