错误： missing ; before statement
源文件：http://tieba.blue.cat/Include/Alert.php?t=%BB%D8%B8%B4%CC%FB%D7%D3&m=%B1%A7%C7%B8%A3%AC%CE%AA%C1%CB%B7%C0%D6%B9%CD%DA%B7%D8%A3%AC%B1%BE%B0%C9%BD%FB%D6%B9%BB%D8%B8%B4%3Cspan%20class=
行：2，列：8
源代码：
Notice: Undefined index: fun in /web/php/tieba/Include/Alert.php on line 20