短网址程序bug
SELECT url FROM ".DB_PREFIX."urls WHERE BINARY code = '$alias' OR alias = '$alias'
放进去即 SELECT url FROM ".DB_PREFIX."urls WHERE BINARY code = 'aoy' OR alias = 'aoy'
SELECT url FROM ".DB_PREFIX."urls WHERE BINARY code = 'aoyou' OR alias = 'aoyou'
因为aoyou的 code 和 和 aoy 是一样的(三位aoy),所以会返回 aoyou 的地址。