[plugin-solved] read TV from NEW document with OnBeforeDocFormSave

$e = &$modx->Event;
if($e->name == 'OnBeforeDocFormSave'){
global $tags;
if($id == "") $id = $modx->documentIdentifier;
$tv = $modx->getTemplateVar('tags', '*', $id, 0);
$tags = $tv['value'];
$e->alert($tags);
$modx->sendRedirect("index.php");
exit;
}

$e = &$modx->Event;
if($e->name == 'OnBeforeDocFormSave'){
global $content;
$e->alert($content);
$modx->sendRedirect("index.php");
exit;
}

if($modx->Event->name == 'OnBeforeDocFormSave'){
global $tv;
$tv = $_POST['tvtags'];
$modx->Event->Alert($tv);
$modx->sendRedirect("index.php");
exit;
}

echo "<pre>";
print_r($_POST) // whatever array or object you want to see here
echo "</pre>";
// if you want to just see the values above 
// you can add a line to stop further processing
// exit();

function print_me($var, $exit = 0) {
    echo '<pre>';
    print_r($var);
    echo '</pre>';

    if ($exit == '1') {
        exit();
    }
}

function print_me($var, $exit = 0) {
    echo '<pre>';
    print_r($var);
    echo '</pre>';

    if ($exit == '1') {
        exit();
    }
}

switch($modx->Event->name){
case 'OnBeforeDocFormSave' :
global $tv;
global $pm;
$tv = $_POST['tvtags'];
$pm = print_me($_POST);
$modx->Event->Alert($tv.'<br>'.$pm);
$modx->sendRedirect("index.php");
break;
}

$pm = print_me($_POST, 1);