function readers($num = 10, $size = 32, $prefix = 'ys_')
{
$options = Typecho_Widget::widget('Widget_Options');
//系统参数
if (!$options->duoshuo) {
return false;
}
$n = 1;
//数量开关
$reader = '';
//读者墙列表
$limit = 200;
//统计条数，越大越详细，但是却会越慢
$author = explode(',', $options->author);
$url = 'http://' . $options->duoshuo . '.duoshuo.com/api/posts/list.json?limit=' . $limit;
//API地址
$period = 3600 * 24 * 30;
// 時段: 30 天, 單位: 秒
$path = __TYPECHO_ROOT_DIR__ . '/usr/uploads/cache/';
//缓存路径
$file = $path . $prefix . 'readers.php';
if (time() - @filemtime($file) > $period || !file_exists($file)) {
//统计读者墙
$list = file_get_contents($url);
$list = json_decode($list, true);
$list = $list['parentPosts'];
foreach ($list as $k => $v) {
if (isset($v['author']) && !in_array($v['author']['name'], $authors)) {
$usr_arr[] = $v['author']['name'];
$usr_info[$v['author']['name']]['url'] = $v['author']['url'];
$usr_info[$v['author']['name']]['avatar_url'] = empty($v['author']['avatar_url']) ? 'http://static.duoshuo.com/images/noavatar_default.png' : $v['author']['avatar_url'];
}
}
$usr = array_count_values($usr_arr);
arsort($usr);
//排序
foreach ($usr as $k => $v) {
if ($n > $num) {
break;
}
$reader .= '<li><a href="' . $usr_info[$k]['url'] . '" target="_blank" rel="nofollow" title="' . $k . '[共' . $v . '条评论]"><img src="' . $usr_info[$k]['avatar_url'] . '" style="width:' . $size . 'px"></a></li>' . "\n\r";
$n++;
}
SaveCache($file, $reader);
} else {
$reader = LoadCache($file);
}
echo $reader;
}
function SetCache($szUrl, $results)
{
if (!is_numeric($results)) {
$results = 1;
}
if ($results == 0) {
$results = 1;
}
$md5 = md5($szUrl);
$GLOBALS["CACHE_URLS"][$md5] = intval($results);
if (count($GLOBALS["CACHE_URLS"]) > $GLOBALS["CacheSizeItems"]) {
unset($GLOBALS["CACHE_URLS"]);
@file_put_contents($GLOBALS["CACHE_FILE"], serialize($GLOBALS["CACHE_URLS"]));
}
$GLOBALS["CACHE_URLS_COUNT"]++;
if ($GLOBALS["CACHE_URLS_COUNT"] > 500) {
SaveCache();
ReadCache();
$GLOBALS["CACHE_URLS_COUNT"] = 0;
}
}