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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 | |