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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.
This hook occurs 2 times in this file.
Line | Code |
---|---|
192 | if ( $cat ) |
193 | $title = apply_filters('single_cat_title', $cat->name); |
194 | } |
195 |
|
196 | if ( !empty($tag) ) { |
197 | $tag = get_term($tag, 'post_tag', OBJECT, 'display'); |
198 | if ( is_wp_error( $tag ) ) |
199 | return $tag; |
200 | if ( ! empty($tag->name) ) |
201 | $title = apply_filters('single_tag_title', $tag->name); |
202 | } |
203 |
|
204 | // If there's an author |
205 | if ( !empty($author) ) { |
206 | $title = get_userdata($author); |
207 | $title = $title->display_name; |
208 | } |
209 | if ( !empty($author_name) ) { |
210 | // We do a direct query here because we don't cache by nicename. |
Line | Code |
287 | if ( !is_tag() ) |
288 | return; |
289 |
|
290 | $tag_id = intval( get_query_var('tag_id') ); |
291 |
|
292 | if ( !empty($tag_id) ) { |
293 | $my_tag = &get_term($tag_id, 'post_tag', OBJECT, 'display'); |
294 | if ( is_wp_error( $my_tag ) ) |
295 | return false; |
296 | $my_tag_name = apply_filters('single_tag_title', $my_tag->name); |
297 | if ( !empty($my_tag_name) ) { |
298 | if ( $display ) |
299 | echo $prefix . $my_tag_name; |
300 | else |
301 | return $my_tag_name; |
302 | } |
303 | } |
304 | } |
305 |
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