Speed up export

main-repo/app/Jobs/UsersExport.php

@@ -36,20 +36,30 @@ class UsersExport implements ShouldQueue
             $filename = 'users_export_' . now()->format('Y-m-d_H-i-s') . '.csv';
             $filePath = $exportPath . '/' . $filename;
 
-            $handle = fopen($filePath, 'w');
+            $fileHandle = fopen($filePath, 'w');
+            fputcsv($fileHandle, ['Имя', 'Фамилия', 'Телефон', 'E-mail']);
 
-            fputcsv($handle, ['Имя', 'Фамилия', 'Телефон', 'E-mail']);
+            User::select('id', 'name', 'surname', 'phone_number', 'email')
+                ->chunkById(30000, function ($users) use ($fileHandle) {
+                    $chunkHandle = fopen('php://memory', 'r+');
+                    
+                    foreach ($users as $user) {
+                        fputcsv($chunkHandle, [
+                            $user->name,
+                            $user->surname,
+                            $user->phone_number,
+                            $user->email,
+                        ]);
+                    }
+                    
+                    rewind($chunkHandle);
+                    $csvData = stream_get_contents($chunkHandle);
+                    fclose($chunkHandle);
+                    
+                    fwrite($fileHandle, $csvData);
+                });
 
-            foreach (User::select('name', 'surname', 'phone_number', 'email')->lazy() as $user) {
-                fputcsv($handle, [
-                    $user->name,
-                    $user->surname,
-                    $user->phone_number,
-                    $user->email,
-                ]);
-            }
-
-            fclose($handle);
+            fclose($fileHandle);
 
             Cache::forever('export_status', 'standby');
             Cache::forever('last_export_file', 'exports/' . $filename);