<?  
function cny($ns) { 
    static $cnums=array("零","壹","贰","叁","肆","伍","陆","柒","捌","玖"), 
        $cnyunits=array("圆","角","分"), 
        $grees=array("拾","佰","仟","万","拾","佰","仟","亿"); 
    list($ns1,$ns2)=explode(".",$ns,2); 
    $ns2=array_filter(array($ns2[1],$ns2[0])); 
    $ret=array_merge($ns2,array(implode("",_cny_map_unit(str_split($ns1),$grees)),"")); 
    $ret=implode("",array_reverse(_cny_map_unit($ret,$cnyunits))); 
    return str_replace(array_keys($cnums),$cnums,$ret); 
}