diff options
| -rw-r--r-- | inc/parserutils.php | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/inc/parserutils.php b/inc/parserutils.php index 9224dae10..b7359d7ef 100644 --- a/inc/parserutils.php +++ b/inc/parserutils.php @@ -625,9 +625,41 @@ function & p_get_renderer($mode) { * headings ... and so on. * * @author Andreas Gohr <andi@splitbrain.org> + * @author Michael Hamann <michael@content-space.de> */ function p_get_first_heading($id, $render=true){ - return p_get_metadata($id,'title',$render); + // counter how many titles have been requested using p_get_metadata + static $count = 0; + // the index of all titles, only loaded when many titles are requested + static $title_index = null; + // cache for titles requested using p_get_metadata + static $title_cache = array(); + + $id = cleanID($id); + + // check if this title has already been requested + if (isset($title_cache[$id])) + return $title_cache[$id]; + + // check if already too many titles have been requested and probably + // using the title index is better + if ($count > 10) { + if (is_null($title_index)) { + $pages = array_map('rtrim', idx_getIndex('page', '')); + $titles = array_map('rtrim', idx_getIndex('title', '')); + // check for corrupt title index #FS2076 + if(count($pages) != count($titles)){ + $titles = array_fill(0,count($pages),''); + @unlink($conf['indexdir'].'/title.idx'); // will be rebuilt in inc/init.php + } + $title_index = array_combine($pages, $titles); + } + return $title_index[$id]; + } + + ++$count; + $title_cache[$id] = p_get_metadata($id,'title',$render); + return $title_cache[$id]; } /** |