Description:
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i have problem with converting cyrillic string to lower. Sorry you need to set page encoding to Windows-1251 to see the strings. Here is a screenshot if you can`t see the screen: http://www.net4you.bg/temp/tempimg.jpg

Reproduce code:
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<?php
	//The string in uc;
	$string = '??????????????????????????????';
	print "Actual uc string: $string<br>";
	//Convert the string to lower
	print "Result: ".(strtolower($string))."<br>";
	//Should produce "??????????????????????????????"
	//Actual output "??????????????????????????????"
	
	print  'Expected: ??????????????????????????????';
?>

Expected result:
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??????????????????????????????

Actual result:
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??????????????????????????????