<?php
    header('Content-Type: application/json');
    include 'conexion.php';
    $conexion = mysqli_connect($dbhost, $dbuser, $dbpass, $dbname);
    if (!$conexion) 
    {
          die("Fallo la conexion: " . mysqli_connect_error());
     }
    $sql= "select temperatura from lecturas order by id desc limit 8;";
    $result = mysqli_query($conexion,$sql);
    $data = array();
    foreach ($result as $row) {
        $data[] = $row;
    }
    mysqli_close($conexion);
    echo json_encode($data);
    
?>