Menampilkan peta di website yang sudah memiliki titik koordinat

$alternatif = $conn->getAlternatifList(); --- mengalami fatal error apakah sudah benar coding dibawah ini ?

<?php
 include'koneksi.php';
 $alternatif = $conn->getAlternatifList();
?>
<!DOCTYPE html>
<html>
<head>
 <title>Leaflet basic example</title>
 <script src="jquery-3.5.1.js"></script>
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.3.4/dist/leaflet.css" />
  <script src="https://unpkg.com/leaflet@1.3.4/dist/leaflet.js"></script>
</head>
<body>
 <div id="map" style="width: 600px; height: 400px"></div>
 <script>

  var map = L.map('map').setView([-2.539251, 112.958686], 14);

  L.tileLayer( 'https://api.mapbox.com/styles/v1/mapbox/streets-v10/tiles/{z}/{x}/{y}?access_token=pk.eyJ1IjoibWVnYTYzODIiLCJhIjoiY2ozbXpsZHgxMDAzNjJxbndweDQ4am5mZyJ9.uHEjtQhnIuva7f6pAfrdTw', {
   maxZoom: 18,
   attribution: 'Map data © <a href="http://openstreetmap.org/"> OpenStreetMap </a> contributors, ' +
    '<a href="http://creativecommons.org/"> CC-BY-SA </a>, ' +
    'Imagery © <a href="http://mapbox.com">Mapbox</a>',
   id: 'examples.map-i875mjb7'
  }).addTo(map);

  $( document ).ready(function() {
   addAlternatif();
  });

  function addAlternatif() {
   for(var i=0; i<alternatif.length; i++) {
    var marker = L.marker( [alternatif[i]['latitude'], alternatif[i]['longitude']]).addTo(map);
    marker.bindPopup( "<b>" + alternatif[i]['id_sekolah']+"</b><br>Nama Sekolah:" + alternatif[i]['nama_sekolah'] + "<br />Alamat Sekolah: " + alternatif[i]['alamat_sekolah']);
   }
  }

  function stringToGeoPoints( geo ) {
   var linesPin = geo.split(",");

   var linesLat = new Array();
   var linesLng = new Array();

   for(i=0; i < linesPin.length; i++) {
    if(i % 2) {
     linesLat.push(linesPin[i]);
    }else{
     linesLng.push(linesPin[i]);
    }
   }

   var latLngLine = new Array();

   for(i=0; i<linesLng.length;i++) {
    latLngLine.push( L.latLng( linesLat[i], linesLng[i]));
   }

   return latLngLine;
  }

  var alternatif = JSON.parse( '<?php echo json_encode($alternatif) ?>' );
 </script>
</body>
</html>

avatar yessy
@yessy

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