urn $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); thread_random_delete(); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } // 随机主题 $g_random = FALSE; function thread_random_get($n = 20) { global $conf, $config, $g_random; if ($config['setting']['random_on'] == 0 || empty($n)) return NULL; $g_random === FALSE AND $g_random = website_get('random'); if (empty($g_random)) { $g_random = thread_tid_find(1, array_value($conf, 'random_n', 1000)); $g_random = $g_random ? website_set('random', arrlist_values($g_random, 'tid')) : NULL; } if (empty($g_random)) { $tids = NULL; } else { $keys = array_flip($g_random); // tid翻转为key $n = count($keys) < $n ? count($keys) : $n; $tids = array_rand($keys, $n); // 随机返回tid } return $tids; } // 创建新主题加入随机 function thread_random_set($tid) { global $conf, $config, $g_random; if ($config['setting']['random_on'] == 0) return NULL; $g_random === FALSE AND $g_random = website_get('random'); empty($g_random) AND $g_random = array(); count($g_random) >= array_value($conf, 'random_n', 1000) AND array_pop($g_random); // 尾出 array_unshift($g_random, $tid); // 头入 return website_set('random', $g_random); } // 清空 function thread_random_delete() { website_set('random', ''); return TRUE; } /* function thread_random_delete_by_tid($tid) { global $config, $g_random; if ($config['setting']['random_on'] == 0) return NULL; $g_random === FALSE AND $g_random = website_get('random'); if (empty($g_random)) return NULL; $g_random = array_flip($g_random); unset($g_random[$tid]); $g_random = array_flip($g_random); $g_random = array_values($g_random); return website_set('random', $g_random); } */ ?>标签:屈尊 - 今日霍州

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