fix(partner): 修复 PHP 8 下微小浮点数科学计数法导致 bcmul 参数格式错误的 500 异常

addons/shopro/service/partner/RateService.php

@@ -41,11 +41,22 @@ class RateService
     public function calcRate($n = null)
     {
         $n = $n === null ? $this->countN() : intval($n);
-        $base = (float) PartnerConfig::get('partner_madow_base_rate', 0.00000075);
+        $rawBase = PartnerConfig::get('partner_madow_base_rate', '0.00000075');
+        $base = is_numeric($rawBase) ? (float) $rawBase : 0.00000075;
+        // 关键防坑：PHP 8.0+ 下小于 0.0001 的浮点数转为 string 时会自动变成科学计数法 (如 "7.5E-7")
+        // 传给 bcmul() 会直接抛出 Fatal error: Argument #1 ($num1) is not well-formed
+        // 必须使用 number_format 格式化为无科学计数法的高精度十进制字符串
+        $baseStr = number_format($base, 10, '.', '');
+
         $step = intval(PartnerConfig::get('partner_madow_step_orders', 1));
         $step = $step > 0 ? $step : 1;
         $multiple = max(1, floor($n / $step));
-        return function_exists('bcmul') ? (float) bcmul((string) $base, (string) $multiple, 10) : (float) ($base * $multiple);
+        $multipleStr = number_format($multiple, 0, '.', '');
+
+        if (function_exists('bcmul')) {
+            return (float) bcmul($baseStr, $multipleStr, 10);
+        }
+        return (float) ($base * $multiple);
     }
 
     public function countN()

application/admin/controller/shopro/Dashboard.php

@@ -235,7 +235,7 @@ class Dashboard extends Common
             foreach ($allAgents as $ag) {
                 if ($filterCallback($ag)) {
                     $uCount++;
-                    $madowTotal = (float) bcadd((string)$madowTotal, (string)($ag->madow ?? 0), 8);
+                    $madowTotal = round($madowTotal + (float) ($ag->madow ?? 0), 8);
                     $uid = (int) $ag->user_id;
 
                     // 收益按角色类型精准归集