Enable mbstring

I am trying to deploy a php application and it requires enabling mbstring.

I used this command in the console sudo apt install php7.2-mbstring and still I get the error mbstring is not enabled.

When I execute the same command again I get this msg “php7.2-mbstring is already the newest version”

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Hello @littlegrayshark

ALso, make sure to reload/restart Apache/Nginx once the package is installed in order for the changes to take effect.


Hi @littlegrayshark,

Are you sure your application is using the PHP version? The best way to check is to create a file info.php in your Website’s root/home and add the following inside it:



Then load the file and see which php version you are using and if MBSTRING is actually enabled.

try creating a phpinfo() page and see if it lists mbstring as available or enabled