求高手帮忙把这段asp代码转换成php的...

以下代码是ASP+MSSQL的想转换成PHP+MYsql的..
<%
    'dim p5_Pid,p2_Order
pd_FrpId=request("pd_FrpId")
if pd_FrpId="" then
response.Write("<script language='javascript'>alert('请选择您的信息！');history.go(-1)</script>")
response.End()
end if p2_Order=request("p2_Order")
    if p2_Order="" then
        response.Write("<script language='javascript'>alert('操作错误!');window.close();</script>")
response.End()
end if
p5_Pid=request("p5_Pid")
if p5_Pid="" then
response.Write("<script language='javascript'>alert('请填写好您的帐号!');hsitry.go(-1);</script>")
response.End()
end if
SqlConnectionString="DRIVER={SQL Server};SERVER=.;UID=xxx;PWD=xxx;DATABASE=xxx;"
Set Conn= Server.CreateObject("ADODB.Connection")
Conn.Open SqlConnectionString    set rs=conn.execute("select top 1 * from Users where UserName='"& p5_Pid &"'")
if rs.eof then
response.Write("<script language='javascript'>alert('对不起没有此用户,请重新确认!');history.go(-1);</script>")
response.End()
else
useriid=rs("ID")
end if
'CardNo,CardPass,CardTypeID,BatchNo,Nullity,CreateDate,UseDate,UserID,Accounts
    set rs=conn.execute("select * from Card where CardNo='"& p2_Order &"'")
if rs.eof then
    set rs=conn.execute("insert into Card(CardNo,CardPass,CardTypeID,BatchNo,Nullity,CreateDate,ID,UserName) values ('"& p2_Order &"','c93ccd78b2076528346216b3b2f701e6',0,0,'"& false &"','"& date() &"','"& useriid &"','"& p5_Pid &"')")
    end if 
p5_Pid=cstr(useriid)
%>