Call to undefined function yii \ helpers \ mb_strlen ()

.. \ vendor \ yiisoft \ yii2 \ helpers \ BaseStringHelper.php

I use Denwer, php 5.5.27

  • Via phpinfo () check Loaded Configuration File C: \ ... \ php.ini - Dmitriy

1 answer 1

mb_strlen() not included initially in php you can fix it here

http://www.php.net/manual/en/mbstring.installation.php

  • in php.ini uncommented extension = php_mbstring.dll and in the ext folder there is php_mbstring.dll. Restarted server - john
  • You may have several php.ini. make sure you are correct - username
  • One file When I removed the comment, when I started the server, the same window appeared twice with the words PHP startup - john