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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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801 | } elseif ( 'post_tag' == $taxonomy ) { |
802 | /** |
803 | * Filter the post tag feed link. |
804 | * |
805 | * @since 2.3.0 |
806 | * |
807 | * @param string $link The tag feed link. |
808 | * @param string $feed Feed type. |
809 | */ |
810 | $link = apply_filters( 'tag_feed_link', $link, $feed ); |
811 | } else { |
812 | /** |
813 | * Filter the feed link for a taxonomy other than 'category' or 'post_tag'. |
814 | * |
815 | * @since 3.0.0 |
816 | * |
817 | * @param string $link The taxonomy feed link. |
818 | * @param string $feed Feed type. |
819 | * @param string $feed The taxonomy name. |