[PHP] mb_language() 인식 못함

http://www.phpbuilder.com/board/archive/index.php/t-10305555.html

해결책

it means that the multibyte functions are not installed. you need to edit your php.ini file to uncommend the extension php_mbstring.dll and make sure it is in the extension directory, as specified in php.ini

윈도우에선 php.ini 파일에서 php_mbstring.dll 파일 주석제거
리눅스에선 php configure시 --enable-mbstring 추가