修复Discuz X3.2升级后RSS输出的Bug

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这个不知道是不是程序-BUG
PHP error_log错误日志信息文件竟达好多G,
记事本打开是些这样的

[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177
[06-Nov-2015 12:40:26 Etc/GMT-8] PHP Deprecated:  mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in D:\127.0.0.1\source\class\discuz\discuz_database.php on line 177

Discuz X3.2在升级到20141225版本后出现了RSS的输出异常。错误代码如下：

XML 解析错误：语法错误
位置：http://www.xxx.com/forum.php?mod=rss
行 2，列 1：Deprecated: mysql_escape_string(): This function is deprecated; use mysql_real_escape_string() instead. in /xxx/xxx/xxx/source/class/discuz/discuz_database.php on line 177

出错的原因是使用了一个已经弃用的PHP函数。很明显，Discuz的补丁在开发完成后并没有测试，甚至连官网都没有开启RSS输出，甚至我怀疑开发的人是不是有真实水平。


这个错误代码仅在Firefox下才会提示，IE和Chrome都直接报错而没有错误代码。

修复的方法也很简单，自行将discuz_database.php第177行的mysql_escape_string()函数换成mysql_real_escape_string()即可