mb_url_title() generates an error

Hello,
I need to transform titles with accented characters and I've tried the function mb_url_title(). Unfortunately, this one generate the error : Call to undefined function App\Controllers\mb_url_title()

What did I do wrong ? Strangely url_title() works and I've tried to declare the uri helper in my controller.

thanks for help.

Sounds like the mb extensions are remarked out in your php.ini file.

Also did you load the url_helper?

It works here I just tried it.

Check your php.ini file and remove the ; semi-colon from

;extension=mbstring

should be
extension=mbstring

What did you Try? What did you Get? What did you Expect?

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