[solved] Snippets being executed several times

<?php
//This script will receive XFDF form data and store it in a folder for each user

//Check if usser is logged in and if is web user
$usuario=$modx->userLoggedIn();
if($usuario==true && $usuario['usertype']=='web') { 
	//We create an specific folder for the user if it is not created.
	$id = $usuario['id'];
	chdir('/home/MYSITE/xfdf/');
	if (!is_dir($id)) mkdir($id);
	chdir($id);

	//Read XFDF Data
	$XFDFData = file_get_contents('php://input');
	$xfdf = new SimpleXMLElement($XFDFData);

	//Create unique filename
	$md5 = md5(mktime() . microtime());
	//Save data as XML
	$xfdf->asXML($md5 . '.xfdf');
	
	//Output
	echo 'Data saved';

//If not authorized...
} else {
	echo 'Not authorized';
	//$modx->sendForward(37);
}
?>

	//Save data as XML
	$xfdf->asXML($md5 . '.xfdf');

<?php
//This script will receive XFDF form data and store it in a folder for each user

//Check if usser is logged in and if is web user
$usuario=$modx->userLoggedIn();
if($usuario==true && $usuario['usertype']=='web') { 
	//We create an specific folder for the user if it is not created.
	$id = $usuario['id'];
	chdir('/home/MYSITE/xfdf/');
	if (!is_dir($id)) mkdir($id);
	chdir($id);

	//Read XFDF Data
	$XFDFData = file_get_contents('php://input');
	$xfdf = new SimpleXMLElement($XFDFData);

	//Check if user has been granted. This session variable is created in a plugin executed before this snippet. 
	if ($_SESSION['submitGranted'] && $_SESSION['submitGranted'] == 1) {
		//Create unique filename. 
		$md5 = md5(mktime() . microtime());
		//Save data as XML
		$xfdf->asXML($md5 . '.xfdf');
		$_SESSION['submitGranted'] = $md5 . '.xfdf';
	}
	
	//Output
	echo 'Data saved';

//If not authorized...
} else {
	echo 'Not authorized';
	//$modx->sendForward(37);
}
?>

# For full documentation and other suggested options, please see
# http://svn.modxcms.com/docs/display/MODx096/Friendly+URL+Solutions
# including for unexpected logouts in multi-server/cloud environments
# and especially for the first three commented out rules

#php_flag register_globals Off
#AddDefaultCharset utf-8
#php_value date.timezone Europe/Moscow

Options +FollowSymlinks
RewriteEngine On
RewriteBase /

# Fix Apache internal dummy connections from breaking [(site_url)] cache
RewriteCond %{HTTP_USER_AGENT} ^.*internal\ dummy\ connection.*$ [NC]
RewriteRule .* - [F,L]

# Rewrite domain.com -> www.domain.com -- used with SEO Strict URLs plugin
#RewriteCond %{HTTP_HOST} .
#RewriteCond %{HTTP_HOST} !^www\.example\.com [NC]
#RewriteRule (.*) http://www.example.com/$1 [R=301,L]

# Exclude /assets and /manager directories and images from rewrite rules
RewriteRule ^(manager|assets)/*$ - [L]
RewriteRule \.(jpg|jpeg|png|gif|ico)$ - [L]

# For Friendly URLs
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]

# Reduce server overhead by enabling output compression if supported.
#php_flag zlib.output_compression On
#php_value zlib.output_compression_level 5

if (!defined('SNIPPET_XFDF')) {
   ... code goes here ...
   define('SNIPPET_XFDF', true);
}