PHP SphinxClient::setfilterrange示例

     * 主题范围
     * digest		= array(0,1,2,3)
     * displayorder = array(0,1,2,3)
     */
    $sp_filter = array('digest' => array(1, 2, 3), 'top' => array(1, 2, 3));
    if (isset($srchfilter) && isset($sp_filter[$srchfilter])) {
        $cl->setfilter($srchfilter, $sp_filter[$srchfilter]);
    }
}
//搜索时间
if (!empty($srchfrom)) {
    $srchfrom = (int) $srchfrom;
    $sp_time_now = time();
    $ps_time_select = $sp_time_now - $srchfrom;
    //$before默认是false	所选时间到现在		$before=1时，表示这段时间之外
    $cl->setfilterrange('dateline', $ps_time_select, $sp_time_now, $before);
}
//排序类型
$sp_order = isset($ascdesc) && $ascdesc == 'asc' ? SPH_SORT_ATTR_ASC : SPH_SORT_ATTR_DESC;
$sp_orderby = array('lastpost', 'dateline', 'replies', 'views');
//'rank',
if (in_array($orderby, $sp_orderby)) {
    $cl->SetSortMode($sp_order, $orderby);
} else {
    $cl->SetSortMode(SPH_SORT_EXPR, '@weight');
}
//搜索论坛板块范围
if (!empty($srchfid) && $srchfid != 'all') {
    foreach ($srchfid as $forum) {
        if ($forum = intval(trim($forum))) {
            $sp_fids[] = $forum;