php - MongoCursorException - 未找到游标(MongoDB PHP 驱动程序)

Question

代码:

try {
  $documentsFind = $client->$db->$collection->find([
      // query
  ]);
  if ($documentsFind) {
    foreach ($documentsFind as $product) {
    // code...
    }
  }
catch (MongoCursorException $e) {
  echo "error message: ".$e->getMessage()."\n";
  echo "error code: ".$e->getCode()."\n";
}

错误:

Fatal error: Uncaught MongoDB\Driver\Exception\RuntimeException: Cursor not found, cursor id: 31837896248 in ...

好像游标确实存在但是超时了？我怎样才能防止这种情况发生？

编辑添加:我尝试这样做:

 if ($documentsFind) {
    $documentsFind->immortal(true); // keep alive
    foreach ($documentsFind as $product) {
    // code...
    }
  }

但这会导致 Call to undefined method MongoDB\Driver\Cursor::immortal()。

Answer 1

尝试这样查询:

$documentsFind = $client->$db->$collection->find([
  // query
], ['noCursorTimeout' => true]);

find() 方法将第二个参数传递给 Find 类构造函数，因此您可以看到所有可用选项 here