55 lines
2.1 KiB
PHP
55 lines
2.1 KiB
PHP
<?php
|
|
// ============================================================
|
|
// osrm_routing.php
|
|
// Helper functions for OpenStreetMap Routing Machine (OSRM)
|
|
// Used to estimate accurate distance (km) and duration (mins)
|
|
// ============================================================
|
|
|
|
/**
|
|
* Get Distance and Duration between two coordinates using public OSRM server.
|
|
* Note: If you host your own OSRM, replace the $osrmBaseUrl.
|
|
*
|
|
* @param float $startLat
|
|
* @param float $startLng
|
|
* @param float $endLat
|
|
* @param float $endLng
|
|
* @return array|null Returns ['distance_km' => float, 'duration_min' => float] or null on failure.
|
|
*/
|
|
function getOsrmRouteDetails($startLat, $startLng, $endLat, $endLng) {
|
|
// Format: longitude,latitude
|
|
$coordinates = "{$startLng},{$startLat};{$endLng},{$endLat}";
|
|
|
|
// Using public demo server. Note: Has rate limits.
|
|
// For production, highly recommended to use: "http://your-own-osrm-server.com:5000"
|
|
$osrmBaseUrl = "http://router.project-osrm.org";
|
|
$url = "{$osrmBaseUrl}/route/v1/driving/{$coordinates}?overview=false";
|
|
|
|
$ch = curl_init();
|
|
curl_setopt($ch, CURLOPT_URL, $url);
|
|
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
|
|
curl_setopt($ch, CURLOPT_TIMEOUT, 5); // 5 seconds timeout
|
|
|
|
// Add a User-Agent to avoid being blocked by the public demo server
|
|
curl_setopt($ch, CURLOPT_USERAGENT, "SiroRideHailingApp/1.0");
|
|
|
|
$response = curl_exec($ch);
|
|
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
|
|
curl_close($ch);
|
|
|
|
if ($httpCode === 200 && $response) {
|
|
$data = json_decode($response, true);
|
|
if (isset($data['code']) && $data['code'] === 'Ok' && isset($data['routes'][0])) {
|
|
$route = $data['routes'][0];
|
|
$distanceMeters = isset($route['distance']) ? (float)$route['distance'] : 0;
|
|
$durationSeconds = isset($route['duration']) ? (float)$route['duration'] : 0;
|
|
|
|
return [
|
|
'distance_km' => round($distanceMeters / 1000, 2),
|
|
'duration_min' => round($durationSeconds / 60, 2)
|
|
];
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|