--- polyline_encoder/class.polylineEncoder.php	2008-12-10 18:36:04.000000000 +0100
+++ enrico/class.polylineEncoder.php	2009-07-15 08:59:50.000000000 +0200
@@ -51,6 +51,8 @@
 	 */
 	public function encode($points) 
 	{
+	$absMaxDist = 0;
+
     if(count($points) > 2) 
     {
       $stack[] = array(0, count($points)-1);
@@ -140,6 +142,8 @@
 	
 	private function createEncodings($points, $dists)
 	{
+	    $plat = 0; $plng = 0; $encoded_points = '';
+		
 	    for($i=0; $i<count($points); $i++)
 	    {
 	        if(isset($dists[$i]) || $i == 0 || $i == count($points)-1) 
@@ -161,6 +165,8 @@
 	
 	private function encodeLevels($points, $dists, $absMaxDist) 
 	{
+	$encoded_levels = '';
+
 	    if($this->forceEndpoints)
 	    {
 	        $encoded_levels .= $this->encodeNumber($this->numLevels-1);
@@ -189,6 +195,8 @@
 	
 	private function encodeNumber($num)
 	{
+	    $encodeString = '';
+
 	    while($num >= 0x20) 
 	    {
 	        $nextValue = (0x20 | ($num & 0x1f)) + 63;