Get Average Lat and Long from KML

<?php

$xml = new DOMDocument();
$xml->validateOnParse = true;

$file_path = ''; // FilePath. Dur

if(@$xml->loadXML(file_get_contents($file_path))) :

  $coordinates = $xml->getElementsByTagName('coordinates');
  foreach ($coordinates as $coordinate) {
    $coord_list[] = $coordinate->nodeValue;
  }

  // Clean up the coordinates
  foreach ($coord_list as $coordinates) {
    $coordinates = explode(',0 ', $coordinates);
    $coordinates = array_filter($coordinates);
    $coordinates = array_map('trim', $coordinates);
  }

  $longs = array();
  $lats = array();

  foreach($coordinates as $index => $coordinate_set) {
    $coords = explode(',', $coordinate_set);
    (!empty($coords[0])) ? array_push($longs, $coords[0]) : '';
    (!empty($coords[1])) ? array_push($lats, $coords[1]) : '';
  }

  $longitude = array_sum($longs) / count($longs);
  $latitude = array_sum($lats) / count($lats);

  ?>