In unity web player, how i can connect to mysql server by php?

i want to connect to mysql server. and it works when i build my project as pc, mac & linux standalone mode. however it does not work in web palyer mode. it dose not send any data to mysql server.

it is my c# code.

using UnityEngine; using UnityEngine.UI; using UnityEngine.Events; using System; using System.Collections; using System.Collections.Generic;

public class DBManager : MonoBehaviour {

 private string inname;
 private int inscore;


 public void PressButton()
 {

     GameObject NameIn = GameObject.Find ("InputName");
     GameObject DisText = GameObject.Find ("TotalScoreText");
     InputField INValue = NameIn.GetComponent<InputField> ();
     GUIText GDT = DisText.GetComponent<GUIText> ();

     int.TryParse (GDT.text, out inscore);
     Debug.Log (inscore);
     inname = INValue.text;
     Debug.Log (inname);

     Awake ();
 }

 private void Awake()
 {

     StartCoroutine (SubmitHighScore ());
 }

 private IEnumerator SubmitHighScore()
 {
     int _score = inscore;
     string _name = inname;

     WWW webRequest = new WWW ("http://my ip address/insertScore.php?Name=" + _name + "&Score=" + _score);
     yield return webRequest;

 }

and it is my php code

 $link = mysql_connect('localhost', 'genie', 'genie');
 mysql_select_db('run_score');

 
 $name = @$_GET['Name'];
 $score = @$_GET['Score'];
 
 if(!$name)
     die("No name.");
 if(!$score)
     die("No score.");

 $data = $name."_".$score;
 
 mysql_query("INSERT INTO ranking (Name, Score) VALUES ('$name', '$score')");
 echo "success";

 mysql_close($link);