PHP - Retrieve data from the Foursquare venues API

foursquare-venues-search.php

<?php
//Foursquare Venue Search API Sample
//API Documentation available at https://developer.foursquare.com/docs/venues/search

//Retrieve data sent from your application
$postdata = file_get_contents("php://input");
$data = json_decode($postdata);
//This connects to AngularJS, however depending on your application you ay need to retrieve from $_POST

//Required parameter
//Latitude
//Longitude
//Limit (max is 50 per request)

//Optional param
//Offset - For pagination of results

$foursquare = get_foursquare_data($data);

echo $foursquare;

function get_foursquare_data($data)
{
    $secret = FOURSQUARE_SECRET;
    $cid = FOURSQUARE_CLIENTID;
    $host = "https://api.foursquare.com/v2/venues/";
    $ver = '20160510';
    
    $limit = $data->limit;
    $offset = "";
    if ($data->offset > 0) {
        $offset = "&offset=" . $data->offset;
    }
    $url = $host . "search?ll=" . $data->lat . "," . $data->long . "&limit=" . $limit . $offset . "&client_id=" . $cid . "&client_secret=" . $secret . "&v=" . $ver;
    //Final URL Example
    //https://api.foursquare.com/v2/venues/search?ll=37.8141,144.9633&limit=1&offset=1&client_id=FOURSQUARE_CLIENTID&client_secret=FOURSQUARE_SECRET&v=20160510
    
    // initiate curl
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_URL, $url);
    $result = curl_exec($ch);
    curl_close($ch);

    return $result;
}

//Response Example
// {
// meta: {
//     code: 200
//     requestId: "573a747f498e7c431ab277e3"
// }
// notifications: [
//     {
//         type: "notificationTray"
//         item: {
//             unreadCount: 0
//         }
//     }
// ]
// response: {
//     venues: [
//         {
//             id: "513a6079e4b06b29f6ec4dbe"
//             name: "Melbourne Exhibition Centre"
//             contact: { }
//             location: {
//                 lat: 37.82331085205078
//                 lng: 144.95330810546875
//                 distance: 1350
//                 cc: "XX"
//             }
//             categories: [
//                 {
//                     id: "4bf58dd8d48988d1ff931735"
//                     name: "Convention Center"
//                     pluralName: "Convention Centers"
//                     shortName: "Convention Center"
//                     icon: {
//                         prefix: "https://ss3.4sqi.net/img/categories_v2/building/conventioncenter_"
//                         suffix: ".png"
//                     }
//                     primary: true
//                 }
//             ]
//             verified: false
//             stats: {
//                 checkinsCount: 3
//                 usersCount: 3
//                 tipCount: 0
//             }
//             specials: {
//                 count: 0
//                 items: [ ]
//             }
//             hereNow: {
//                 count: 0
//                 summary: "Nobody here"
//                 groups: [ ]
//             }
//             referralId: "v-1463448703"
//             venueChains: [ ]
//         }
//     ]
//     confident: false
// }
// }