Question

I have a clunky-architecture question 🙂

I have 1 php script. The script performs a database query for longitude/latitude from the database, and gets that data. Then what I need it to do is call JavaScript function which places a marker on the spot of the lat/lng.

Is that possible to accomplish? How is such a thing best done?

Thanks,
Alex

Answer 1

A simplest way to pass value from php to javascript is to simply create a variable inside script tag on your page.

<script type="text/javascript">
    var lat = <?php echo $phpLat;?>;
    var lng = <?php echo $phpLng;?>;

    ...
</script>    

Then, where you initialize the map, you can also create a marker. Something like this

var point = new google.maps.LatLng(lat, lng);
var marker = new google.maps.Marker({
    position: point,
    title: 'test'
});
marker.setMap(map);

You can check Google Maps Javascript API documentation for more information.