I am not sure what you mean by sending data to HTML page from php, html can not recieve data. Instead you can use a php page to do it.
Android code:
HttpPost httppost = new HttpPost("PHP_PAGE_ADDRESS");
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("data", "abc"));
nameValuePairs.add(new BasicNameValuePair("data1", "def"));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response = httpclient.execute(httppost);
PHP Code:
<?php
$data =$_GET['data'];
$data1 = $_GET['data1'];
?>
<form>
Data: <input type="text" name="firstname" value = <?php echo $data; ?> ><br>
Data1: <input type="text" name="firstname" value = <?php echo $data1; ?> >
</form>
Hope this helps.