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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 |
|---|---|
| 186 | if ( !empty($monthnum) ) |
| 187 | $title .= " $sep ".$month[zeroise($monthnum, 2)]; |
| 188 | if ( !empty($day) ) |
| 189 | $title .= " $sep ".zeroise($day, 2); |
| 190 | } |
| 191 | |
| 192 | // If there is a post |
| 193 | if ( is_single() || is_page() ) { |
| 194 | $title = strip_tags($posts[0]->post_title); |
| 195 | $title = apply_filters('single_post_title', $title); |
| 196 | } |
| 197 | |
| 198 | $prefix = ''; |
| 199 | if ( isset($title) ) |
| 200 | $prefix = " $sep "; |
| 201 | |
| 202 | $title = $prefix . $title; |
| 203 | $title = apply_filters('wp_title', $title, $sep); |
| 204 | |
| Line | Code |
| 214 | global $wpdb; |
| 215 | $p = get_query_var('p'); |
| 216 | $name = get_query_var('name'); |
| 217 | |
| 218 | if ( intval($p) || '' != $name ) { |
| 219 | if ( !$p ) |
| 220 | $p = $wpdb->get_var("SELECT ID FROM $wpdb->posts WHERE post_name = '$name'"); |
| 221 | $post = & get_post($p); |
| 222 | $title = $post->post_title; |
| 223 | $title = apply_filters('single_post_title', $title); |
| 224 | if ( $display ) |
| 225 | echo $prefix.strip_tags($title); |
| 226 | else |
| 227 | return strip_tags($title); |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | |
| 232 | function single_cat_title($prefix = '', $display = true ) { |