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<?php
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declare(strict_types=1);
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namespace app\adminapi\logic\stats;
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use app\common\service\tcm\RevisitVisitSlotService;
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/** 指派日期队列：先圈定患者，再累计其持有期间的有效复诊订单；不改变全局诊次。 */
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final class RevisitCohortCalculator
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{
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public const TYPE_NEW = 'new';
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public const TYPE_INHERIT = 'inherit';
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/**
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* 日志与订单分别按 (diagnosis_id, create_time, id) 升序。
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* 新指派保留全局诊次；继承每次从二诊重新起算，同一秒订单归最新指派。
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* 同一医助、诊单、诊次只计一次，避免反复继承把单诊接诊率推高至 100% 以上。
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*/
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public static function compute(
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array $logRows,
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iterable $orderRows,
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array $offsetMap,
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array $refundRejectSet,
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array $rollbackKeySet,
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int $startTs,
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int $endTs,
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int $observedAt,
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string $type
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): array {
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$type = $type === self::TYPE_INHERIT ? self::TYPE_INHERIT : self::TYPE_NEW;
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$timeline = [];
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$pairs = [];
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$lastTarget = [];
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foreach ($logRows as $r) {
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$did = (int) ($r['diagnosis_id'] ?? 0);
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$aid = (int) ($r['to_assistant_id'] ?? 0);
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$from = (int) ($r['from_assistant_id'] ?? 0);
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$time = (int) ($r['create_time'] ?? 0);
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if ($did <= 0 || $time > $observedAt) {
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continue;
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}
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// 从未分配重新指派时，写入侧可能把 from 回填为原医助，形成 A→A。
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// 以实际时间线判断持有人是否变化，保留释放后的重新承接。
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$previous = $lastTarget[$did] ?? null;
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if (($previous !== null && $previous === $aid) || ($previous === null && $from === $aid)) {
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continue;
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}
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$lastTarget[$did] = $aid;
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$isRollback = isset($rollbackKeySet[RevisitRateCalculator::rollbackKey(
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$did, $time, (int) ($r['operator_admin_id'] ?? 0)
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)]);
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$eventType = (int) ($r['is_inherit'] ?? 0) === 1 || $isRollback
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? self::TYPE_INHERIT : self::TYPE_NEW;
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$selected = $aid > 0 && $time >= $startTs && $time <= $endTs
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&& $eventType === $type && !isset($refundRejectSet[$did]);
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$timeline[$did][] = [
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'assistant_id' => $aid,
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'time' => $time,
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'selected' => $selected,
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'type' => $eventType,
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];
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if (!$selected) {
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continue;
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}
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if (!isset($pairs[$aid][$did])) {
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$pairs[$aid][$did] = [
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'diagnosis_id' => $did,
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'assistant_id' => $aid,
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'assign_type' => $type,
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'assign_count' => 0,
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'first_assign_time' => $time,
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'last_assign_time' => $time,
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'is_rollback' => 0,
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];
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}
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$pairs[$aid][$did]['assign_count']++;
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$pairs[$aid][$did]['last_assign_time'] = $time;
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$pairs[$aid][$did]['is_rollback'] |= $isRollback ? 1 : 0;
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}
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$orders = [];
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$curDid = 0;
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$globalSeq = 0;
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$segmentSeq = 0;
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$ptr = 0;
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$offset = 0;
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$event = null;
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foreach ($orderRows as $r) {
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$did = (int) ($r['diagnosis_id'] ?? 0);
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$ct = (int) ($r['create_time'] ?? 0);
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if ($did <= 0 || $ct > $observedAt) {
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continue;
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}
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if ($curDid !== $did) {
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$curDid = $did;
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$globalSeq = 0;
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$segmentSeq = 0;
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$ptr = 0;
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$event = null;
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$offset = RevisitVisitSlotService::resolveRevisitSlotStartOffset($did, $offsetMap);
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}
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$globalSeq++;
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$tl = $timeline[$did] ?? [];
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while ($ptr < \count($tl) && $tl[$ptr]['time'] <= $ct) {
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$event = $tl[$ptr++];
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$segmentSeq = 0;
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}
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if ($event === null) {
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continue;
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}
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$segmentSeq++;
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if (!$event['selected']) {
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continue;
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}
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$slot = $type === self::TYPE_INHERIT ? $segmentSeq + 1 : $globalSeq + $offset;
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if ($slot < 2 || $slot > RevisitRateCalculator::MAX_VISIT_SLOT) {
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continue;
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}
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$aid = $event['assistant_id'];
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// 重复承接同一患者时，明细保留首次达到该诊次的订单，与人数指标逐项对账。
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if (isset($orders[$aid][$slot][$did])) {
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continue;
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}
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$r['assistant_id'] = $aid;
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$r['visit_slot'] = $slot;
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$r['global_visit_slot'] = $globalSeq + $offset;
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$r['cohort_assign_time'] = $event['time'];
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$orders[$aid][$slot][$did] = $r;
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}
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return ['pairsByAssistant' => $pairs, 'ordersByAssistant' => $orders, 'cohort_type' => $type];
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}
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/** 部门与总计按诊单去重；每个诊次保留同一患者最早一笔订单。 */
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public static function scopedOrders(array $calc, array $assistantIds, int $slot = 0): array
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{
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$out = [];
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foreach ($assistantIds as $aid) {
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foreach ($calc['ordersByAssistant'][$aid] ?? [] as $s => $byDiag) {
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if ($slot > 0 && $s !== $slot) {
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continue;
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}
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foreach ($byDiag as $did => $r) {
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$previous = $out[$s][$did] ?? null;
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if ($previous === null || [(int) $r['create_time'], (int) $r['id']]
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< [(int) $previous['create_time'], (int) $previous['id']]) {
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$out[$s][$did] = $r;
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}
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}
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}
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}
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return $out;
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}
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public static function metricPack(array $calc, array $assistantIds, array $slots): array
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{
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$diagSet = [];
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foreach ($assistantIds as $aid) {
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foreach ($calc['pairsByAssistant'][$aid] ?? [] as $did => $_) {
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$diagSet[$did] = true;
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}
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}
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$count = \count($diagSet);
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$inherit = $calc['cohort_type'] === self::TYPE_INHERIT;
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$pack = [
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'assigned_count' => $inherit ? 0 : $count,
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'inherit_count' => $inherit ? $count : 0,
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'assigned_total_count' => $count,
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];
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$orders = self::scopedOrders($calc, $assistantIds);
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$all = array_sum(array_map('count', $orders));
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foreach ($slots as $slot) {
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$num = \count($orders[$slot] ?? []);
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$pack['visit' . $slot . '_count'] = $num;
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$pack['visit' . $slot . '_den'] = $count;
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$pack['visit' . $slot . '_rate'] = $count > 0 ? round($num / $count * 100, 2) : null;
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}
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$pack['visit_all_count'] = $all;
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$pack['visit_all_den'] = $count;
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$pack['visit_all_rate'] = $count > 0 ? round($all / $count * 100, 2) : null;
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return $pack;
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}
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/** 严格校验日期，避免非法日期被 strtotime 自动滚到次月。 */
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public static function dateRange(array $params, int $now): array
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{
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$start = trim((string) ($params['start_date'] ?? ''));
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$end = trim((string) ($params['end_date'] ?? ''));
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if ($start === '' && $end === '') {
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$month = trim((string) ($params['month'] ?? ''));
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if (preg_match('/^\d{4}-(0[1-9]|1[0-2])$/', $month) === 1) {
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$start = $month . '-01';
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$end = date('Y-m-t', (int) strtotime($start));
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} else {
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$start = date('Y-m-01', $now);
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$end = date('Y-m-d', $now);
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}
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}
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foreach ([$start, $end] as $date) {
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$parsed = \DateTimeImmutable::createFromFormat('!Y-m-d', $date);
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if ($parsed === false || $parsed->format('Y-m-d') !== $date) {
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throw new \InvalidArgumentException('请选择有效的开始日期和结束日期');
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}
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}
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if ($start > $end) {
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throw new \InvalidArgumentException('开始日期不能晚于结束日期');
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}
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return [$start, $end, (int) strtotime($start . ' 00:00:00'), (int) strtotime($end . ' 23:59:59')];
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}
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}
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