访问一个php页面竟报这个错误
Fatal error:Cannot to undefined function mb_internal_encoding()
我的环境是：
VirtualBox4.2.6 + Linux(RedHat) + httpd-2.4.4 + mysql-5.1.6 + php-5.4.13
回复讨论(解决方案)
mbstring扩展没开启
mbstring扩展没开启
该怎样开启呢？
网上搜了下，照着做，还是不行
php.ini里，
;mbstring.internal_encoding = EUC-JP
删掉前面的分号 ; 重启apache。
http://php.net/manual/en/mbstring.configuration.php#ini.mbstring.internal-encoding
修改php.ini,添加一句extension=mbstring.so，然后重启apache
如果没有mbstring.so文件的话，去网上搜linux开启php_mbstring扩展，照着安装。
php.ini里，
;mbstring.internal_encoding = EUC-JP
删掉前面的分号 ; 重启apache。
http://php.net/manual/en/mbstring.configuration.php#ini.mbstring.internal-encoding
修改php.ini,添加一句extension=mbstring.so，然后重启apache
如果没有mbstring.so文件的话，去网上搜linux开启php_mbstring扩展，照着安装。
照着做了，还是不行
在php.ini中找到extension=php_mbstring.dll，将前面分号去掉，然后保存，最后重启apache！希望能帮到你哦！
在php.ini中找到extension=php_mbstring.dll，将前面分号去掉，然后保存，最后重启apache！希望能帮到你哦！
我的环境是linux操作系统，.dll是windows操作系统的文件类型
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