phonetic characters does not support on logs

[dinusha]

Hi i'm facing a issue in logs some IPA characters are note showing in logs properly.
in the orders and other places "CORUÑA, A" showing correctly with "Ñ" letter but in logs it shows as "CORUNA, A"

i have tried hook_transliterate

$string = str_replace("\u00d1","Ñ",$string);
and
$string = str_replace("Ñ","Ñ",$string);
in both ways it shows log as
CORUÑA -> CORU/u00d1A

then i tried
$string_new = preg_replace('/[\]uU /', '&#x$1;', $string);
return html_entity_decode($string_new, ENT_COMPAT, 'UTF-8');

but same issue here also
CORUÑA -> CORU/u00d1A

i tried this buy replacing random letter like
$string = str_replace("Ñ","Z",$string);
then it worked as expected
CORUÑA -> CORUZA

cloud you please help me to show these phonetic characters correctly in module logs 

[MrGettingRatherFrustrated]

It could be the colation you have on the database, have a look at this https://stackoverflow.com/questions/14083847/accented-characters-in-mysql-table