<?php
$servername = "localhost";
$username = "root";
$password = "S1stemas";
$dbname = "eficrmp";

// Crear conexión
$conn = new mysqli($servername, $username, $password, $dbname);

// Verificar conexión
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

$altura = $_GET['altura'];

// Consulta para buscar por altura
$sql = "SELECT id, mm as altura, lt as litros FROM board WHERE mm = ? and product_id = 1";
$stmt = $conn->prepare($sql);
$stmt->bind_param("d", $altura);
$stmt->execute();
$result = $stmt->get_result();

$data = [];
if ($result->num_rows > 0) {
    $data = $result->fetch_assoc();
}
echo json_encode($data);

$conn->close();