<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "xcmg";

$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("Conexão falhou: " . $conn->connect_error);
}

if ($_SERVER["REQUEST_METHOD"] == "POST" && isset($_POST["id"])) {
    $id = intval($_POST["id"]);
    $sql = "UPDATE cadastros SET status = 1 WHERE id = $id";

    if ($conn->query($sql) === TRUE) {
        echo "success";
    } else {
        echo "error";
    }
}

$conn->close();