flash 与php 进行数据交互

System.useCodepage = true;
var user_an:Number;
if (select_1 && select_2 && select_3) {
 user_an = 1;
} else {
 user_an = 0;
}
var loginData = new LoadVars();
submit_send.onRelease = function() {
 if (user_name.text == "" && user_tel.text == "") {
  msga.text = "请输入正确的信息!";
 } else {
  //trace(user_name.text+user_tel.text+user_mail.text+user_an)
  msga.text = "提交中...";
  //trace("提交中");
  loginData.user_name = user_name.text;
  loginData.user_tel = user_tel.text;
  loginData.user_mail = user_mail.text;
  loginData.user_an = user_an;
  loginData.sendAndLoad("add_save.php",loginData,"POST");
 }// end else if
};
loginData.onLoad = function(success) {
 if (success) {
  if (loginData.submit == "true") {
   user_name.text = "";
   user_tel.text = "";
   user_mail.text = "";
   msga.text = "发送成功!";
  } else {
   msga.text = "提交失败，请重新提交";
  }
 } else {
  trace("连接网络失败");
  msga.text = "连接网络失败";
 }
};