货币格式转中文大写－PHP

function toCNcap($data){
 $capnum=array("零","壹","贰","叁","肆","伍","陆","柒","捌","玖");
 $capdigit=array("","拾","佰","仟");
  $subdata=explode(".",$data);
  $yuan=$subdata[0];
  $j=0;
 $nonzero=0;
 for($i=0;$i<strlen($subdata[0]);$i++){
   if(0==$i){ //确定个位
     if($subdata[1]){
        $cncap=(substr($subdata[0],-1,1)!=0)?"元":"元零";
      }else{
        $cncap="元";
     }
   }

   //确定万位
    if(4==$i){
      $j=0;
     $nonzero=0;
     $cncap="万".$cncap;
    }

   //确定亿位
    if(8==$i){
      $j=0;
     $nonzero=0;
     $cncap="亿".$cncap;
    }
   $numb=substr($yuan,-1,1); //截取尾数
    $cncap=($numb)?$capnum[$numb].$capdigit[$j].$cncap:(($nonzero)?"零".$cncap:$cncap);
    $nonzero=($numb)?1:$nonzero;
    $yuan=substr($yuan,0,strlen($yuan)-1); //截去尾数
   $j++; 
  }

 if($subdata[1]){
    $chiao=(substr($subdata[1],0,1))?$capnum[substr($subdata[1],0,1)]."角":"零";
    $cent=(substr($subdata[1],1,1))?$capnum[substr($subdata[1],1,1)]."分":"零分";
  }
 $cncap .= $chiao.$cent."整"; 
  return $cncap;

}