Transforms JSON files exported from the moves API [1] into GeoJSON, which can then be used in a number of applications, such as CartoDB or Leaflet. [1] http://dev.moves-app.com

gistfile1.php

<?php
// this is the directory where you have your json files from the moves API stored
$dir = "/my/input/dir";
// this is where your geojson files will be stored
$outdir = "/my/output/dir";

$geojsonplaces = [
    "type" => "FeatureCollection",
    "features" => [ ],
];

$geojsontracks = [
    "type" => "FeatureCollection",
    "features" => [ ],
];

if ($handle = opendir($dir)) {
   
  // iterate through the input json files obtained from the moves api   
    while (false !== ($entry = readdir($handle))) {

    	$file = $dir.'/'.$entry;

        if (is_file($file)){
        	echo "Processing $entry<br />";	
        	$json_file = file_get_contents($file);
        	$array = json_decode($json_file, true);

        	foreach ($array as $json) { 
        		$segments = $json["segments"];
			    
			    foreach($segments as $segment){

			    	// distinguish between static locations and movement segments
			    	// we will put them into two separate output files
			    	if($segment["type"] == "place"){
			    		// we'll store the time spent at each location in minutes:
			    		$duration = (date("U",strtotime($segment["endTime"])) - date("U",strtotime($segment["startTime"])));

			    		$place = $segment["place"];
			    		$location = $place["location"];

			    		// reassemble the feature a la geojson:
						$place = [ "type"     => "Feature", 
						           "geometry" => 
						           		[ "type"        => "Point",
						           		  "coordinates" => [$location["lon"], $location["lat"]],
						                ],
						           "properties" => [ "placename" => $place["name"],
						                             "placetype" => $place["type"],
						                             "startTime" => $segment["startTime"],
						                             "endTime"   => $segment["endTime"],	
						                             "duration"  => $duration,        
						                            ]
						         ];

						array_push($geojsonplaces["features"], $place);

					// movement segments:
			    	}else if($segment["type"] == "move"){

			    		$activities = $segment["activities"];
			    		foreach ($activities as $activity) {

			    			// assemble the geojson lineString from the moves json waypoints:
			    			$coordinates = [];

			    			foreach ($activity["trackPoints"] as $trackpoint) {
			    				$thispoint = [$trackpoint["lon"], $trackpoint["lat"]];
			    				array_push($coordinates, $thispoint);
			    			}

			    			// reassemble the feature a la geojson:	
			    		 	$line = [ "type"     => "Feature",
			    		 			  "geometry" =>	
			    		 			        [ "type"        => "LineString",
			    		 			          "coordinates" => $coordinates
			    		 			        ],
			    		 			   "properties" => 
			    		 			   		[ "activity"  => $activity["activity"],
			    		 			   		  "distance"  => $activity["distance"],
			    		 			   		  "startTime" => $activity["startTime"],
			    		 			   		  "endTime"   => $activity["endTime"],
			    		 			   		  "duration"  => $activity["duration"]
			    		 			   		]
			    		 	        ];

			    		 	array_push($geojsontracks["features"], $line);
			    		 } 

			    	}
			    }
			    
			}
        } 
    }

    closedir($handle);
}

// add the required properties to the two geojson files to make them valid geojson
$properties = [ "properties" => [ "title" => "My moves."] ];
array_push($geojsonplaces, $properties);
array_push($geojsontracks, $properties);

// write to disk
file_put_contents($outdir.'/places.json', json_encode($geojsonplaces));
file_put_contents($outdir.'/tracks.json', json_encode($geojsontracks));
echo "Done.";

?>