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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 |
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417 | /** |
418 | * Filters all of the post categories for display in a feed. |
419 | * |
420 | * @since 1.2.0 |
421 | * |
422 | * @param string $the_list All of the RSS post categories. |
423 | * @param string $type Type of feed. Possible values include 'rss2', 'atom'. |
424 | * Default 'rss2'. |
425 | */ |
426 | return apply_filters( 'the_category_rss', $the_list, $type ); |
427 | } |
428 |
|
429 | /** |
430 | * Displays the post categories in the feed. |
431 | * |
432 | * @since 0.71 |
433 | * |
434 | * @see get_the_category_rss() For better explanation. |
435 | * |