update

app/Http/Controllers/Mobile/OtherController.php

@@ -140,7 +140,7 @@ class OtherController extends CommonController
         $sortName = $all['sort_name'] ?? 'distance';
         $sortType = $all['sort_type'] ?? 'asc';
 
-        // 使用简化的距离计算公式
+        // 使用简单的距离计算公式
         $distanceFormula = "
             (6371 * acos(
                 cos(radians(?)) * 
@@ -180,6 +180,20 @@ class OtherController extends CommonController
                 }
             ]);
 
+        // 添加SQL调试信息
+        \Log::info('SQL Query', [
+            'sql' => $query->toSql(),
+            'bindings' => $query->getBindings()
+        ]);
+
+        // 添加参数调试信息
+        \Log::info('Distance Parameters', [
+            'latitude' => $latitude,
+            'longitude' => $longitude,
+            'latitude_type' => gettype($latitude),
+            'longitude_type' => gettype($longitude)
+        ]);
+
         // 根据排序字段进行排序
         if ($sortName === 'distance') {
             // 距离排序始终按升序（从近到远）
@@ -197,7 +211,9 @@ class OtherController extends CommonController
             'target_lat' => '31.326810',
             'target_lon' => '120.421618',
             'expected_distance' => 13.22,
-            'actual_distance' => $result->first() ? $result->first()->distance : 'N/A'
+            'actual_distance' => $result->first() ? $result->first()->distance : 'N/A',
+            'formula' => $distanceFormula,
+            'parameters' => [$latitude, $longitude, $latitude]
         ]);
 
         return $this->success($result);