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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 |
|---|---|
| 3072 | |
| 3073 | // Make sure we have a valid post status |
| 3074 | if ( !in_array($post_status, get_post_stati()) ) |
| 3075 | return false; |
| 3076 | |
| 3077 | $cache = array(); |
| 3078 | $key = md5( serialize( compact(array_keys($defaults)) ) ); |
| 3079 | if ( $cache = wp_cache_get( 'get_pages', 'posts' ) ) { |
| 3080 | if ( is_array($cache) && isset( $cache[ $key ] ) ) { |
| 3081 | $pages = apply_filters('get_pages', $cache[ $key ], $r ); |
| 3082 | return $pages; |
| 3083 | } |
| 3084 | } |
| 3085 | |
| 3086 | if ( !is_array($cache) ) |
| 3087 | $cache = array(); |
| 3088 | |
| 3089 | $inclusions = ''; |
| 3090 | if ( !empty($include) ) { |
| Line | Code |
| 3172 | $query .= $author_query; |
| 3173 | $query .= " ORDER BY " . $sort_column . " " . $sort_order ; |
| 3174 | |
| 3175 | if ( !empty($number) ) |
| 3176 | $query .= ' LIMIT ' . $offset . ',' . $number; |
| 3177 | |
| 3178 | $pages = $wpdb->get_results($query); |
| 3179 | |
| 3180 | if ( empty($pages) ) { |
| 3181 | $pages = apply_filters('get_pages', array(), $r); |
| 3182 | return $pages; |
| 3183 | } |
| 3184 | |
| 3185 | // Sanitize before caching so it'll only get done once |
| 3186 | $num_pages = count($pages); |
| 3187 | for ($i = 0; $i < $num_pages; $i++) { |
| 3188 | $pages[$i] = sanitize_post($pages[$i], 'raw'); |
| 3189 | } |
| 3190 | |
| Line | Code |
| 3205 | for ( $i = 0; $i < $num_pages; $i++ ) { |
| 3206 | if ( in_array($pages[$i]->ID, $excludes) ) |
| 3207 | unset($pages[$i]); |
| 3208 | } |
| 3209 | } |
| 3210 | |
| 3211 | $cache[ $key ] = $pages; |
| 3212 | wp_cache_set( 'get_pages', $cache, 'posts' ); |
| 3213 | |
| 3214 | $pages = apply_filters('get_pages', $pages, $r); |
| 3215 | |
| 3216 | return $pages; |
| 3217 | } |
| 3218 | |
| 3219 | // |
| 3220 | // Attachment functions |
| 3221 | // |
| 3222 | |
| 3223 | /** |