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最近写了一段比较不错的代码，记录一下，tp3.1临时连接指定数据库，切片分类in查询，带过滤需要的数据

/*** 获取季度报告总结* @author Bruce 2025/6/10*/public function getQuarterReportSummarize() {// 获取全部数据$allData = $this->getAllProtectedDomains();if ($allData['code'] != 1) {return $this->ajaxError($allData['message']);}// 分批处理大量数据，每批500个$batchSize = 500;$result = [];$totalDomains = count($allData['list']);for ($i = 0; $i < $totalDomains; $i += $batchSize) {$batch = array_slice($allData['list'], $i, $batchSize);$configs = D('WangZhanDomainHost')->getConfigs($batch);foreach ($configs as $key=>$config) {$messages = [];if (!$config['iswaf']) $messages[] = 'Web漏洞防护未开启';if (!$config['cc_switch']) $messages[] = 'CC防护未开启';if (!$config['cs_switch']) $messages[] = '爬虫防护未开启';if (!empty($messages)) {$result[$key] = implode('，', $messages) . '；';}}// 释放内存unset($batch, $configs);}return $this->ajaxSuccess($result);}

# WangZhanDomainHostModel.class.php
/*** 获取配置信息（优化版）*/public function getConfigs($data = []){if (empty($data)) return [];// 提取所有host和zone组合$hosts = [];$zones = [];$hostZoneMap = [];foreach ($data as $item) {if (empty($item['host']) || empty($item['zone'])) continue;$host = addslashes($item['host']);$zone = addslashes($item['zone']);$hosts[$host] = $host;$zones[$zone] = $zone;$hostZoneMap[$host][$zone] = true;}if (empty($hosts) || empty($zones)) return [];// 使用IN查询替代大量OR条件$allConfigs = $this->alias('dh')->join('LEFT JOIN anti_cc_config cc ON dh.host = cc.host AND dh.zone = cc.zone')->join('LEFT JOIN anti_cs_config cs ON dh.host = cs.host AND dh.zone = cs.zone')->where(['dh.host' => ['IN', array_unique($hosts)],'dh.zone' => ['IN', array_unique($zones)],])->field('dh.host, dh.zone, IFNULL(dh.iswaf, 0) as iswaf,IFNULL(cc.main_switch, 0) as cc_switch,IFNULL(cs.main_switch, 0) as cs_switch')->select();// 过滤出真正需要的记录$finalConfigs = [];foreach ($allConfigs as $config) {if (isset($hostZoneMap[$config['host']][$config['zone']])) {$finalConfigs[$config['host'].'.'.$config['zone']] = $config;}}return $finalConfigs;}