返回结果
array (
  'log_id' => '7855587048853289238',
  'items' => 
  array (
  ),
)array (
  'log_id' => '4060094431650881014',
  'items' => 
  array (
  ),
)

$text = "三星电脑电池不给力";

$text = mb_convert_encoding($text, "GBK", "UTF-8");

// 调用评论观点抽取
$result = $client->commentTag($text);
var_export($result);

// 如果有可选参数
$options = array();
$options["type"] = 13;

// 带参数调用评论观点抽取
$result = $client->commentTag($text, $options);
var_export($result);

die;