Php 索引期间Elasticsearch MapperParsingException[解析失败，文档为空]

我将elasticsearch 1.2.2与php包装器elastica一起使用

在为一些文档编制索引时，我遇到了以下异常

PHP Fatal error:  Uncaught exception 'Elastica\Exception\Bulk\ResponseException' with message 'Error in one or more bulk request actions:

index: /en_search/en_msg/936 caused MapperParsingException[failed to parse, document is empty]
' in /root/search/vendor/ruflin/elastica/lib/Elastica/Bulk.php:395
Stack trace:
#0 /root/search/vendor/ruflin/elastica/lib/Elastica/Bulk.php(345): Elastica\Bulk->_processResponse(Object(Elastica\Response))
#1 /root/search/vendor/ruflin/elastica/lib/Elastica/Client.php(284): Elastica\Bulk->send()
#2 /root/search/vendor/ruflin/elastica/lib/Elastica/Index.php(147): Elastica\Client->addDocuments(Array)
#3 /root/search/vendor/ruflin/elastica/lib/Elastica/Type.php(187): Elastica\Index->addDocuments(Array)
#4 /root/search/setData.php(36): Elastica\Type->addDocuments(Array)
#5 {main}
  thrown in /root/search/vendor/ruflin/elastica/lib/Elastica/Bulk.php on line 395

现在，它无法解析的文档是这个文档，它显然不是空的

array(
    [id] => 936
    [uid] => 3222
    [msid] => 211
    [login] => user1222
    [msg] => Wouldn’t you love a cup right now?
)

文档映射是这样的

$mapping->setProperties(array(
    'id'  => array('type' => 'integer', 'include_in_all' => true),
    'uid' => array('type' => 'integer', 'include_in_all' => true),
    'msid' => array('type' => 'integer', 'include_in_all' => true),
    'login' => array('type' => 'string', 'include_in_all' => TRUE),
    'msg'  => array('type' => 'string', 'include_in_all' => true), 

));

按照这里的建议在批量模式下进行索引

---

我很确定这是由

字符引起的。不确定是否需要逃跑。如果是这样的话，我如何转义这些字符
 已解决。这是一个编码问题。我的数据来自mysql服务器，在pdo对象初始化期间，我必须设置正确的字符集选项。
由于特殊字符，这是一个编码问题，我建议转义您试图索引的文本

$text = html_entity_decode(htmlentities($text, ENT_IGNORE, "UTF-8"));

你能分享你进行批量请求的代码吗？那是什么字符集？