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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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170 | foreach ( $cat_names as $cat_name ) { |
171 | if ( 'rdf' == $type ) |
172 | $the_list .= "\n\t\t<dc:subject><![CDATA[$cat_name]]></dc:subject>\n"; |
173 | elseif ( 'atom' == $type ) |
174 | $the_list .= sprintf( '<category scheme="%1$s" term="%2$s" />', attribute_escape( apply_filters( 'get_bloginfo_rss', get_bloginfo( 'url' ) ) ), attribute_escape( $cat_name ) ); |
175 | else |
176 | $the_list .= "\n\t\t<category><![CDATA[$cat_name]]></category>\n"; |
177 | } |
178 |
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179 | return apply_filters('the_category_rss', $the_list, $type); |
180 | } |
181 |
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182 |
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183 | function the_category_rss($type = 'rss') { |
184 | echo get_the_category_rss($type); |
185 | } |
186 |
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187 | function get_tag_feed_link($tag_id, $feed = 'rss2') { |
188 | $tag_id = (int) $tag_id; |