mb_convert_encoding, undefined function while mbstring is enabled

Question

I have a server (Ubuntu 11.10 x64) running PHP 5.3.8 with Apache2 / MySQL. I\'m currently working on a project where I\'m required to do some specific character encoding, bu

Answer 1

In the case of your installation is php5.6 is similar to solution of neilsimp1:

Running sudo apt-get install php7.0-mbstring and then sudo service php7.0-fpm restart did the trick for me.

sudo apt-get install php5.6-mbstring

and then restart apache service

sudo service apache2 restart.

Answer 2

Sometimes people receiving this kind of error : Fatal error: Call to undefined function mb_convert_encoding() in /public_html/this/this.php at line 188. Normally this kind of errors comes in PHP Sites and PHP framework aswell.

It looks like PHP mbstring not installed on your server.

Solution :

In my case I have just uncomment ;extension=php_mbstring.dll in php.ini file and issue has been resolved.

Don't forget to restart apache server after uncomment ;extension=php_mbstring.dll

Code taken from this blog: http://chandreshrana.blogspot.in/2016/01/call-to-undefined-function.html

Answer 3

A lot of newer Linux servers do not have PHP Multibyte modules installed by default. A simple solution is often to install php-mbstring.

On Red Hat flavors (CentOS, Fedora, etc.) you can use yum install php-mbstring.

Make sure you restart your Apache server afterwards. Use service httpd restart on RH flavors.