textfunction fun()
{
$Num=func_num_args();
$List=func_get_args();
$Result=0;
for($i=$Num-1;$i>=0;$i--)
$Result.=$List[$i];
return $Result;
}
$Var1=fun(1,2,3,4);
$Var2=fun("t","n","e","d","u","t","s");
echo "$Var1
";
echo "$Var2
";
?>
因为函数被调用了两次，错误的原因是$result没声明;
