Description:
------------
str_replace doesn't work properly with non-ascii(128~) characters in arrays.
I tested below script on cp949 machine.

Test script:
---------------
<?php
echo ConvertPokerCardString( 'QS 4C JC 9D JH 7H AC' );

function ConvertPokerCardString( $str )
{
    return( str_replace( array('D','S','H','C'), array('◆','♠','♥'.'♣'), $str ) );

//  below codes works well.
/*
    $str = str_replace( 'D', '◆', $str );
    $str = str_replace( 'H', '♥', $str );
    $str = str_replace( 'S', '♠', $str );
    $str = str_replace( 'C', '♣', $str );
    return $str;
*/
}
?>

Expected result:
----------------
Q♠ 4♣ J♣ 9◆ J♥ 7♥ A♣

Actual result:
--------------
Q♠ 4 J 9◆ J♥♣ 7♥♣ A