not found write output when i am using japanese characters ina file

please watch this example:-

<?php

$filename ="test.txt";

$myFile= fopen($filename,'w+');

if(! $myFile){

print ("File could not be opened.");

exit;
}

$string = "こんいちわ,あかい,いち、ね、さん、よん、ご、ろく、なな";

fputs($myFile, $string);
$lines=file("test.txt");
echo $lines[0];

fclose($myFile);

i am using Japanese text and create a txt file,named Test.txt.when i am using file function to take every line in an array.

and then i display the line using echo.but i dont get the write output

i get ｉ"・÷・醂あｅ"・ａ・Aｖ!Aｊ"・Aゅ・AｉAよ"・Aｔ・ garbage character.

but when i am using english character its display wright output.

i set Mbstring settings to EUC-JP.and check all other settings related to php.ini

please help me.