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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 |
|---|---|
| 406 | } |
| 407 | |
| 408 | /** |
| 409 | * Display the excerpt of the current comment. |
| 410 | * |
| 411 | * @since 1.2.0 |
| 412 | * @uses apply_filters() Calls 'comment_excerpt' hook before displaying excerpt |
| 413 | */ |
| 414 | function comment_excerpt() { |
| 415 | echo apply_filters('comment_excerpt', get_comment_excerpt() ); |
| 416 | } |
| 417 | |
| 418 | /** |
| 419 | * Retrieve the comment id of the current comment. |
| 420 | * |
| 421 | * @since 1.5.0 |
| 422 | * @uses $comment |
| 423 | * @uses apply_filters() Calls the 'get_comment_ID' hook for the comment ID |
| 424 | * |