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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 |
|---|---|
| 199 | } else { |
| 200 | $link = get_tag_link($tag->term_id); |
| 201 | if ( 'rss2' == $feed ) |
| 202 | $feed_link = 'feed'; |
| 203 | else |
| 204 | $feed_link = "feed/$feed"; |
| 205 | $link = $link . user_trailingslashit($feed_link, 'feed'); |
| 206 | } |
| 207 | |
| 208 | $link = apply_filters('tag_feed_link', $link, $feed); |
| 209 | |
| 210 | return $link; |
| 211 | } |
| 212 | |
| 213 | function html_type_rss() { |
| 214 | $type = get_bloginfo('html_type'); |
| 215 | if (strpos($type, 'xhtml') !== false) |
| 216 | $type = 'xhtml'; |
| 217 | else |