代码：
<HTML>
<HEAD><meta http-equiv="Content-Type" content="text/html;charset=gb2312"/>
</HEAD>
<BODY>
<?php
function totalmoney($jiage,$number)
{
$totallcost = $jiage*$number;
echo "您购买的价格为:$jiage"."元。" ,"数量为:$number"."本。<br/>";
echo "总共花费了:$totallcost"."元.";
}
totalmoney(20,3);
?>
</BODY>
</HTML>
结果：
原文：http://www.cnblogs.com/fengyan520/p/6815223.html