PHP function unavailable - may be missed APACHE compile config

Question

I have just switched from a shared hosting environment to a dedicated service and whilst testing my code I am finding that some PHP functions aren't available:

Fatal error: Call to undefined function mb_strtoupper()

I have full access to WHM and I can recompile PHP with a bunch of options. Being new to this, I felt it be better to leave the options I'm not familiar with as their default setting.

PHPINFO() states I am running version 5.2.9 and APACHE 2.2.

Have I missed an option in configuring APACHE - is there something I need to switch on to gain full access to PHP functions?

Answer 1

this is a question better asked on serverfault.com

however, regarding your version you moust likely just have to activate mb extensions

also make sure your php is compiled with --enable-mbstring