ACF Multiple Map Markers

Question

I'm using Advanced Custom Fields and want to pull in the field called 'location' to display some locations on a map. How would i adjust the following code to display multiple markers from my location field?

The format of the custom field is like so:

echo 'Location: ' . get_field('location');

outputs ...

Location: -33.890542,151.274856

Thanks for your help.

<div id="group-map" style="width: 100%; height: 300px;display:none;   float:left;margin:0 0 30px 0;"></div>
                   <script type="text/javascript">
var locations = [
  ['Bondi Beach', -33.890542, 151.274856, 4],
  ['Coogee Beach', -33.923036, 151.259052, 5],
  ['Cronulla Beach', -34.028249, 151.157507, 3],
  ['Manly Beach', -33.80010128657071, 151.28747820854187, 2],
  ['Maroubra Beach', -33.950198, 151.259302, 1]
];


var map = new google.maps.Map(document.getElementById('group-map'), {
  zoom: 10,
  center: new google.maps.LatLng(-33.92, 151.25),
  mapTypeId: google.maps.MapTypeId.ROADMAP
});

var infowindow = new google.maps.InfoWindow();

var marker, i;

for (i = 0; i < locations.length; i++) {  
  marker = new google.maps.Marker({
    position: new google.maps.LatLng(locations[i][1], locations[i][2]),
    map: map
  });

  google.maps.event.addListener(marker, 'click', (function(marker, i) {
    return function() {
      infowindow.setContent(locations[i][0]);
      infowindow.open(map, marker);
    }
  })(marker, i));
}

Answer 1

You can create a custom query and loop through all locations.

var locations = [
    <?php 
        $args = array(
            'post_type' => 'your_post_type',
            'posts_per_page' => -1
        );
        $locations = new WP_Query($args);
        if($locations->have_posts()){
            while($locations->have_posts()){ the_post();
            $loc = get_field('location')
    ?>
     ['<?php echo get_the_title(); ?>', <?php echo $loc[0]; ?>, <?php echo $loc[1]; ?>],
    <?php } } ?>
]