有个类似的问题在这里找到了答案：）

记录一下：

$Pricea = array("212|RMB","152|RMB","170|RMB","321|RMB","140|USD","210|USD");//价格|符号
foreach($Pricea as $v)
{
    $tatol = explode("|", $v);
    $a[$tatol[1]] += $tatol[0];
}
foreach($a as $key=>$val){
    echo $key.":".$val."  "; //符号:价格总数
}



原文：http://www.ybfq.com/blog/article.asp?id=320