Fatal error: Call to undefined function mb_strtolower() on cPanel server

I was facing following error on my site :
=======================================================
Fatal error: Call to undefined function mb_strtolower() in
=======================================================
Cause :
The error was due to mbstring php module  was not installed.
Solution:
To resolve this issue need to recompile apache with Multibye string(mbstring) module.
Once apache is compiled your error should be gone…Cheers!