ダブル・クヲゥトを escape

broadcast/talk.php

@@ -3,9 +3,9 @@
 if ($_SERVER['HTTP_HOST'] === 'nizika.monster')
   header ('location: //nizika.tv/talk.php');
 
-$dt = $_GET['dt'];
-$chat = $_GET['chat'];
-$answer = $_GET['answer'];
+$dt = htmlspecialchars ($_GET['dt']);
+$chat = htmlspecialchars ($_GET['chat']);
+$answer = htmlspecialchars ($_GET['answer']);
 
 require_once './talk.frm.php';