Google maps - duratie en afstand berekenen

maps.php

<?php

function distance($start, $destination)
{
  // Send request to Google
  $start = urlencode($start);
  $destination = urlencode($destination);
  $url = "http://maps.googleapis.com/maps/api/distancematrix/json?origins=$start&destinations=$destination&mode=driving&language=nl-NL&sensor=false";

  // Get response
  $response = json_decode(file_get_contents($url));
  if($response->status !== 'OK') return 'ERROR';
  if($response->rows{0}->elements{0}->status !== 'OK') return 'NOT_FOUND';

  // Return parsed result
  $result = [
    'start' => str_replace(', Nederland', '', $response->origin_addresses{0}),
    'destination' => str_replace(', Nederland', '', $response->destination_addresses{0}),
    'info' => [
      'distance' => [
        'text' => $response->rows{0}->elements{0}->distance->text,
        'value' => $response->rows{0}->elements{0}->distance->value,
        'value_km' => $response->rows{0}->elements{0}->distance->value / 1000
      ],
      'duration' => [
        'text' => $response->rows{0}->elements{0}->duration->text,
        'value' => $response->rows{0}->elements{0}->duration->value,
        'value_minutes' => $response->rows{0}->elements{0}->duration->value / 60
      ]
    ]
  ];

  return $result;
}