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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 |
|---|---|
| 348 | function comment_text_rss() { |
| 349 | $comment_text = get_comment_text(); |
| 350 | /** |
| 351 | * Filter the current comment content for use in a feed. |
| 352 | * |
| 353 | * @since 1.5.0 |
| 354 | * |
| 355 | * @param string $comment_text The content of the current comment. |
| 356 | */ |
| 357 | $comment_text = apply_filters( 'comment_text_rss', $comment_text ); |
| 358 | echo $comment_text; |
| 359 | } |
| 360 | |
| 361 | /** |
| 362 | * Retrieve all of the post categories, formatted for use in feeds. |
| 363 | * |
| 364 | * All of the categories for the current post in the feed loop, will be |
| 365 | * retrieved and have feed markup added, so that they can easily be added to the |
| 366 | * RSS2, Atom, or RSS1 and RSS0.91 RDF feeds. |