FATAL ERROR: PHP mbstring extension is not enabled (IIS8/Windows 2012)

Question

I am facing issues while install MantisBT after installing PHP 7.2 in IIS8 / Windows 2012 server.

When I open the page http://localhost:9099/admin/install.php in the browser, I get the following error:

"FATAL ERROR: PHP mbstring extension is not enabled."

Here is a screenshot of the error .

Answer 1

Here is the solution..

After investigate the issue the reason was php.ini file is getting recognized by server Rename the .ini development or production to only .ini so that application can get the path and issue will be resolved

Answer 2

Had the same issue here
I triple checked everything in regards to setting up my PHP.ini file

but there is a comment that mentions on Windows servers, you have to add a line to the config to specify the extension directory

For PHP 8 I had to add the following line to the top of the extension section

extension_dir = "ext"

(also making sure to uncomment extension=exif as the detault config said it was needed)

I rebooted with the CMD command "IISReset" and my webapp that required mbstring booted up fine!