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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 |
|---|---|
| 970 | if ( 'category' === $taxonomy ) { |
| 971 | /** |
| 972 | * Filters the category feed link. |
| 973 | * |
| 974 | * @since 1.5.1 |
| 975 | * |
| 976 | * @param string $link The category feed link. |
| 977 | * @param string $feed Feed type. Possible values include 'rss2', 'atom'. |
| 978 | */ |
| 979 | $link = apply_filters( 'category_feed_link', $link, $feed ); |
| 980 | } elseif ( 'post_tag' === $taxonomy ) { |
| 981 | /** |
| 982 | * Filters the post tag feed link. |
| 983 | * |
| 984 | * @since 2.3.0 |
| 985 | * |
| 986 | * @param string $link The tag feed link. |
| 987 | * @param string $feed Feed type. Possible values include 'rss2', 'atom'. |
| 988 | */ |