PHP: including file written in Bengali does not show text while writing directly in the main page does show up

PHP: including file written in Bengali does not show text while writing
directly in the main page does show up

References

Reference NO 1

http://stackoverflow.com/questions/15185373/php-including-file-written-in-bengali-does-not-show-text-while-writing-directly

Reference NO 2

http://office.microsoft.com/en-us/help/choose-text-encoding-when-you-open-and-save-files-HA010121249.aspx

Reference NO 3

http://php.net/manual/en/function.imagecreate.php

Reference NO 4

http://devzone.zend.com/27/reading-and-writing-spreadsheets-with-php/

Reference NO 5

http://www.connect-bangladesh.org/bangla/webbangla.html

Reference NO 6

http://en.wikipedia.org/wiki/Bengali_language

Reference NO 7

http://htmlpurifier.org/docs/enduser-utf8.html

Reference NO 8

http://www.mediawiki.org/wiki/Manual_talk:Interface/Sidebar