「CSVエクスポート」ファイル名を動的に設定

app/Http/Controllers/Admin/StationController.php

@@ -196,18 +196,34 @@ class StationController extends Controller
     }
 
     /**
-     * CSVエクスポート
+     * CSVエクスポート（日本語ヘッダー付き）
      */
     public function export()
     {
-        return response()->streamDownload(function () {
-            // Excel用のUTF-8 BOM
-            echo "\xEF\xBB\xBF";
-            echo "station_id,station_neighbor_station,station_name_ruby,station_route_name,park_id,operator_id\n";
+        // ファイル名
+        $filename = '近傍駅マスタ_' . now()->format('YmdHis') . '.csv';
 
-            foreach (Station::all() as $station) {
-                echo "{$station->station_id},{$station->station_neighbor_station},{$station->station_name_ruby},{$station->station_route_name},{$station->park_id},{$station->operator_id}\n";
+        return response()->streamDownload(function () {
+            // Excel用 UTF-8 BOM
+            echo "\xEF\xBB\xBF";
+
+            // 日本語ヘッダー行
+            echo "近傍駅ID,駐車場ID,近傍駅,近傍駅ふりがな,路線名,近傍駅座標（緯度）,近傍駅座標（経度）\n";
+
+            // データ行
+            foreach (\App\Models\Station::all() as $station) {
+                echo implode(',', [
+                    $station->station_id,
+                    $station->park_id,
+                    $station->station_neighbor_station,
+                    $station->station_name_ruby,
+                    $station->station_route_name,
+                    $station->station_latitude,
+                    $station->station_longitude,
+                    // $station->operator_id,
+                ]) . "\n";
             }
-        }, 'stations.csv');
+        }, $filename);
     }
+
 }