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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 |
---|---|
894 | if ( 'category' === $taxonomy ) { |
895 | /** |
896 | * Filters the category feed link. |
897 | * |
898 | * @since 1.5.1 |
899 | * |
900 | * @param string $link The category feed link. |
901 | * @param string $feed Feed type. Possible values include 'rss2', 'atom'. |
902 | */ |
903 | $link = apply_filters( 'category_feed_link', $link, $feed ); |
904 | } elseif ( 'post_tag' === $taxonomy ) { |
905 | /** |
906 | * Filters the post tag feed link. |
907 | * |
908 | * @since 2.3.0 |
909 | * |
910 | * @param string $link The tag feed link. |
911 | * @param string $feed Feed type. Possible values include 'rss2', 'atom'. |
912 | */ |