<?php
header('Content-Type: application/json');
$conn = new mysqli("localhost", "root", "", "webgis"); 

$sql = "SELECT * FROM area_polygon";
$result = $conn->query($sql);
$data_area = array();

if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        // Mengubah string geojson dari database kembali menjadi Object JSON
        // Ini wajib agar Leaflet.geoJSON() di Javascript bisa merendernya
        $row['geojson'] = json_decode($row['geojson']);
        $data_area[] = $row;
    }
}

echo json_encode($data_area);
$conn->close();
?>