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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 |
---|---|
401 | } |
402 |
|
403 | /** |
404 | * Display the excerpt of the current comment. |
405 | * |
406 | * @since 1.2.0 |
407 | * @uses apply_filters() Calls 'comment_excerpt' hook before displaying excerpt |
408 | */ |
409 | function comment_excerpt() { |
410 | echo apply_filters('comment_excerpt', get_comment_excerpt() ); |
411 | } |
412 |
|
413 | /** |
414 | * Retrieve the comment id of the current comment. |
415 | * |
416 | * @since 1.5.0 |
417 | * @uses $comment |
418 | * @uses apply_filters() Calls the 'get_comment_ID' hook for the comment ID |
419 | * |