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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 3 times in this file.
Line | Code |
---|---|
169 | $year = get_query_var('year'); |
170 | $monthnum = get_query_var('monthnum'); |
171 | $day = get_query_var('day'); |
172 | $title = ''; |
173 |
|
174 | // If there's a category |
175 | if ( !empty($cat) ) { |
176 | // category exclusion |
177 | if ( !stristr($cat,'-') ) |
178 | $title = apply_filters('single_cat_title', get_the_category_by_ID($cat)); |
179 | } elseif ( !empty($category_name) ) { |
180 | if ( stristr($category_name,'/') ) { |
181 | $category_name = explode('/',$category_name); |
182 | if ( $category_name[count($category_name)-1] ) |
183 | $category_name = $category_name[count($category_name)-1]; // no trailing slash |
184 | else |
185 | $category_name = $category_name[count($category_name)-2]; // there was a trailling slash |
186 | } |
187 | $title = $wpdb->get_var("SELECT cat_name FROM $wpdb->categories WHERE category_nicename = '$category_name'"); |
188 | $title = apply_filters('single_cat_title', $title); |
189 | } |
190 |
|
191 | // If there's an author |
192 | if ( !empty($author) ) { |
193 | $title = get_userdata($author); |
194 | $title = $title->display_name; |
195 | } |
196 | if ( !empty($author_name) ) { |
197 | // We do a direct query here because we don't cache by nicename. |
Line | Code |
252 | else |
253 | return strip_tags($title); |
254 | } |
255 | } |
256 |
|
257 |
|
258 | function single_cat_title($prefix = '', $display = true ) { |
259 | $cat = intval( get_query_var('cat') ); |
260 | if ( !empty($cat) && !(strtoupper($cat) == 'ALL') ) { |
261 | $my_cat_name = apply_filters('single_cat_title', get_the_category_by_ID($cat)); |
262 | if ( !empty($my_cat_name) ) { |
263 | if ( $display ) |
264 | echo $prefix.strip_tags($my_cat_name); |
265 | else |
266 | return strip_tags($my_cat_name); |
267 | } |
268 | } |
269 | } |
270 |
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