gistfile1.js

// Create array for storing results 
var agencies = [];

function callback(results, status) {

    if (status === google.maps.places.PlacesServiceStatus.OK) {
        for (var i = 0; i < results.length; i++) {
           
            //Fetch the ID of each Place returned by the Radar Search                
          	var request = {
				placeId: results[i]['place_id']
			};

            // Call the Places API Web Service
            service = new google.maps.places.PlacesService(map);

            // Initiate Place Details request
            service.getDetails(request, callback);

            function callback(place, status) {
                if (status == google.maps.places.PlacesServiceStatus.OK) {
                	
                    createMarker(place);
                    agencies.push([place.name, place.website, place.rating]);
					
		    // When reaching the last result, send to PHP file to print results
                    if(results.length == agencies.length){
                        console.log(agencies);
                        var request = new XMLHttpRequest();
                        request.open('POST', 'http://localhost/agency-map/src/save.php', true);
                        request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
                        request.send(JSON.stringify(agencies));
                    }
                }
            }
        }
    }
}