function writeRankListCache($type)
{
$cachefile = str_replace('?', $type, $GLOBALS['gCacheFile']);
$overTime = 0;
if ($type == 2 or $type == 3) {
// 周、月排名
$overTime = 18000;
// 5小时
}
// 缓存不存在或超时
if (!file_exists($cachefile) || time() > filemtime($cachefile) + $overTime) {
$datas = getRankSet($type);
// 读取结果集
file_put_contents($cachefile, serialize($datas));
//写入缓存
}
}
function rankByType($type = '')
{
global $gBeginTime, $gEndTime;
switch ($type) {
case 'day':
// 过去5个交易日的日排名
$tradeDays = lastFiveTradeDays(time());
for ($i = 0; $i < 5; $i++) {
$beginDate = $tradeDays[$i];
$endDate = date('Y-m-d', strtotime('+1 day', strtotime($beginDate)));
$beginDatetime = $beginDate . ' ' . $gBeginTime;
$endDatetime = $endDate . ' ' . $gEndTime;
$data = getRankSet($beginDatetime, $endDatetime);
$suffix = $type . ($i + 1);
writeRankCache($data, $suffix);
}
break;
case 'week':
// 过去4周的周排名
for ($i = 1; $i <= 4; $i++) {
list($beginDate, $endDate) = lastTradeNWeek(time(), $i);
$endDate = date('Y-m-d', strtotime('+1 day', strtotime($endDate)));
$beginDatetime = $beginDate . ' ' . $gBeginTime;
$endDatetime = $endDate . ' ' . $gEndTime;
$data = getRankSet($beginDatetime, $endDatetime);
$suffix = $type . $i;
writeRankCache($data, $suffix);
}
break;
case 'month':
// 过去1个月的月排名
list($beginDate, $endDate) = lastMonth(time());
$endDate = date('Y-m-d', strtotime('+1 day', strtotime($endDate)));
$beginDatetime = $beginDate . ' ' . $gBeginTime;
$endDatetime = $endDate . ' ' . $gEndTime;
$data = getRankSet($beginDatetime, $endDatetime);
writeRankCache($data, $type);
break;
default:
return;
}
}