fixed #8

Author: zqzten

src/zhihu.php

@@ -14,7 +14,7 @@
 initDownloadDir(true);
 
 $response = request('https://www.zhihu.com/autocomplete?token='.urlencode($query));
-$json = json_decode(mb_convert_encoding($response, 'UTF-8', 'HTML-ENTITIES'))[0];
+$json = json_decode(html_entity_decode($response, ENT_QUOTES | ENT_HTML5))[0];
 
 foreach ($json as $sugg) {
     if (is_array($sugg)) {