Question

I develop a back-end for a mobile application with cakephp

I have a function that list cities and I want to calculate distance from the user the this cities the code is:

$origins='origins=casablanca,maroc';
    $destinations='&destinations=';
    $url='http://maps.googleapis.com/maps/api/distancematrix/json?';

    $this->paginate = array(
            'limit' => 10,
            'fields'=>array('cityId','cityFileName','cityName','stateId','stateFileName','stateName',
                'countryCode','countryFileName','countryName','count(id) as num_hotels'),
            'order' => 'num_hotels desc',
            'group' =>array('cityId')

    );
    $hotels = $this->paginate();

    for ($i = 0; $i < count($hotels); ++$i) {

        $destination=($i==0?'':'|');

        $destination.=$hotels[$i]['Hotel']['cityName'].','.$hotels[$i]['Hotel']['countryName'];

        $destinations.=$destination;
    }

    $url.=$origins.$destinations.'&mode=driving&language=fr-FR&sensor=false';

    $json = file_get_contents($url,0,null,null);
    $details = json_decode($json, TRUE);

    for ($i = 0; $i < count($hotels); ++$i) {
        $hotels = Set::insert($hotels, $i.'.Hotel.distance',$details['rows']['0']['elements']['0']['distance']['value']);
    }

    $this->set(compact('hotels'));
    $this -> viewPath = "hotels";
    $this -> render("json/index","json/default");

the problem is when i test with the first page (pagination) the result is good but when i access to others page >=2 i got this warning and i cant get the distance

the error is :

Warning (2): file_get_contents(http://maps.googleapis.com/maps/api/distancematrix/json?origins=casablanca,maroc&destinations=Zagora,Morocco|Meknes,Morocco|Chefchaouen,Morocco|Tinghir,Morocco|M'hamid,Morocco|El Jadida,Morocco|Erfoud,Morocco|Skoura,Morocco|Tetouan,Morocco|Imlil,Morocco&mode=driving&language=fr-FR&sensor=false) [function.file-get-contents]: failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request

[APP\Controller\ApiController.php, line 81]

Code Context

$origins = “origins=casablanca,maroc”
$destinations = “&destinations=Zagora,Morocco|Meknes,Morocco|Chefchaouen,Morocco|Tinghir,Morocco|M’hamid,Morocco|El
Jadida,Morocco|Erfoud,Morocco|Skoura,Morocco|Tetouan,Morocco|Imlil,Morocco”
$url = “http://maps.googleapis.com/maps/api/distancematrix/json?origins=casablanca,maroc&destinations=Zagora,Morocco|Meknes,Morocco|Chefchaouen,Morocco|Tinghir,Morocco|M‘hamid,Morocco|El
Jadida,Morocco|Erfoud,Morocco|Skoura,Morocco|Tetouan,Morocco|Imlil,Morocco&mode=driving&language=fr-FR&sensor=false”
$hotels = array( array( “Hotel” => array(), array() ), array(
“Hotel” => array(), array() ), array( “Hotel” => array(), array()
), array( “Hotel” => array(), array() ), array( “Hotel” =>
array(), array() ), array( “Hotel” => array(), array() ), array(
“Hotel” => array(), array() ), array( “Hotel” => array(), array()
), array( “Hotel” => array(), array() ), array( “Hotel” =>
array(), array() ) ) $i = 10 $destination = “|Imlil,Morocco”
$http_response_header = array( “HTTP/1.0 400 Bad Request”,
“Content-Type: text/html; charset=UTF-8”, “Content-Length: 925”,
“Date: Wed, 08 Aug 2012 15:42:43 GMT”, “Server: GFE/2.0” )

file_get_contents – [internal], line ?? ApiController::yassine() –
APP\Controller\ApiController.php, line 81
ReflectionMethod::invokeArgs() – [internal], line ??
Controller::invokeAction() – CORE\Cake\Controller\Controller.php, line
473 Dispatcher::_invoke() – CORE\Cake\Routing\Dispatcher.php, line 104
Dispatcher::dispatch() – CORE\Cake\Routing\Dispatcher.php, line 86
[main] – APP\webroot\index.php, line 96

Answer 1

You must correct this line.

$url.="origins=" .  urlencode($origins). "&destinations=" .
      urlencode($destinations)."&mode=driving&language=fr-FR&sensor=false";