POST method doesn't work titanium?

Hi everybody !

I'm using win7, titanium 3.1.1 alloy

I have a problem with POST method.

I have create a function to insert into Mysql by Alloy and PHP This is my code .js

function transmit(){
    var request = Ti.Network.createHTTPClient({
        onload: function () {
            alert(this.responseText);
        },
        onerror: function(e){ 
            Ti.API.debug(e.error); 
            alert('There was an error during the conexion'); 
        },
        timeout:1000, 
    });    
    var params = {
        title: 'my title 1',
        summary: 'i am a man',
        content: 'greate boy',
    };
    request.open("POST","http://localhost/titanium_connect/get2.php");
    request.send({
        title: 'my title 1',
        summary: 'i am a man',
        content: 'greate boy',
    });
}
transmit();
$.index.open();

And php code

<?php
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = '';
$conn = mysql_connect($dbhost, $dbuser, $dbpass);
if(! $conn )
{
  die('Could not connect: ' . mysql_error());
}
if(isset($_POST['title'])){
    $title = $_POST['title'];
}
else { $title = 'It not working';}
if(isset($_POST['title'])){
    $title = $_POST['title'];
}
else { $title = 'title, It not working';}
 
if(isset($_POST['summary'])){
    $summary = $_POST['summary'];
}
else { $summary = 'summary, It not working';}
 
if(isset($_POST['content'])){
    $content = $_POST['content'];
}
else { $content = 'content, It not working';}
 
$sql = "INSERT INTO posts ".
       "(title, summary, content) ".
       "VALUES ('".$title."', '".$summary."', '".$content."')";
mysql_select_db('todolist');
$retval = mysql_query( $sql, $conn );
if(! $retval )
{
  die('Could not enter data: ' . mysql_error());
}
echo "Entered data successfully\n";
mysql_close($conn);
?>

I try with GET method request.open("POST","http://localhost/titanium_connect/get2.php?title=" + 'my title'); and it work But it doesn't with POST method, already call get2.php but can't receive params.

What's wrong?