function arrlist_cond_orderby($arrlist, $cond = array(), $orderby = array(), $page = 1, $pagesize = 20)
{
$resultarr = array();
// 根据条件，筛选结果
if ($cond) {
foreach ($arrlist as $key => $val) {
$ok = TRUE;
foreach ($cond as $k => $v) {
if (!isset($val[$k]) || $val[$k] != $v) {
$ok = FALSE;
break;
}
}
if ($ok) {
$resultarr[$key] = $val;
}
}
} else {
$resultarr = $arrlist;
}
if ($orderby) {
list($k, $v) = each($orderby);
arrlist_multisort($resultarr, $k, $v == 1);
}
$start = ($page - 1) * $pagesize;
$resultarr = array_assoc_slice($resultarr, $start, $pagesize);
return $resultarr;
}
function thread_find_by_keyword($keyword)
{
$threadlist = db_find("SELECT * FROM `bbs_thread` WHERE subject LIKE '%{$keyword}%' LIMIT 60");
arrlist_multisort($threadlist, 'tid', FALSE);
// 用 PHP 排序，mysql 排序消耗太大。
if ($threadlist) {
foreach ($threadlist as &$thread) {
thread_format($thread);
$thread['subject'] = post_highlight_keyword($thread['subject'], $keyword);
}
}
return $threadlist;
}
