pdf2swf如何動態轉換

pdf2swf怎麼動態轉換？
@$command= "E:/swf/pdf2swf.exe -t a.pdf -o a.swf -s flashversion=9 ";
@system($command);轉換靜態一句比較簡單

但是如何動態轉換？


if (@is_uploaded_file($_FILES['upfile']['tmp_name'])){
$upfile=$_FILES["upfile"];
}
@$name = $upfile["name"];
@$type = $upfile["type"];
@$size = $upfile["size"];
@$tmp_name = $upfile["tmp_name"];
if (move_uploaded_file($tmp_name,$name)) {
echo "上傳成功";
@$command= "E:/swf/pdf2swf.exe -t" .$name. "-o" .$name.swf. "-s flashversion=9 ";
@system($command);
}

if(system($command)){
echo "ture";
}else{
echo "cuo";
}
echo $name;
?>


這裡的$name最後輸是最後是加尾碼名（.pdf） 但是swf檔案的動態怎麼寫？

求各位大俠幫忙！！！！！！！！

------解決方案--------------------
注意空格

$command = "E:/swf/pdf2swf.exe -t $name -o $name.swf -s flashversion=9 ";

