Filezilla site manager duplicates remover.

fixsitemanager.php

<?php

/*
 * Filezilla site manager duplicates remover.
 * Please backup your sitemanager.xml file before using.
 */

// OPTIONS: change here as required.
define('OUTPUT_XML', true); // If set to true then output the browser, otherwise false to save directly back to the file.

// Uncomment the next define if your not using Windows or if the script doesn't work. Set it to the path to your sitemanager.xml file.
// Alternativly copy your sitemanager.xml to your working directory.
//define('XML_FILE', ''); 

// Show errors
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Find sitesmanager.xml
if((!defined('XML_FILE') || XML_FILE == ''))
{
	$file = './sitemanager.xml';
	if(!file_exists($file))
	{
		$userprofile = getenv('APPDATA');
		if($userprofile)
		{
			$file = $userprofile . '/FileZilla/sitemanager.xml';
		}
	}
}
else
{
	$file = XML_FILE;
}

// Load the file if it exists
if(!file_exists($file))
{
	die('<pre>Could not find ' . $file . '.</pre>');
}
$xml = simplexml_load_file($file);

// Find and remove the duplicates
$sites = array();
$children = $xml->Servers[0]->children();
$length = count($children);
$duplicates = 0;
for($i = 0; $i < $length; $i++)
{
	$server = $children[$i];
	$host = (string) $server->Host;
	$user = (string) $server->User;
	
	if(isset($sites[$host][$user]))
	{
		$dom = dom_import_simplexml($server);
		$dom->parentNode->removeChild($dom);
		$i--;
		$length--;
		$duplicates++;
	}
	else
	{
		if(!isset($sites[$host]))
		{
			$sites[$host] = array();
		}
		$sites[$host][$user] = true;
	}
}

// Output new XML to screen or file.
if(!defined('OUTPUT_XML') || !OUTPUT_XML)
{
	if($duplicates > 0)
	{
		$xml->asXml($file);
		echo '<pre>Removed ' . $duplicates . ' duplicates.</pre>';
	}
	else
	{
		echo '<pre>No duplicates to remove.</pre>';
	}
}
else
{
	header('Content-Type: text/xml');
	echo $xml->asXml();
}