PHP脚本不能在Windows mamp中工作，但在mac中工作

Question

$link = mysqli_connect("localhost:8889", "root", "root", "test");
if(!$link){ echo "Não foi possível se conectar ao banco de dados"; exit;}

$profEmail = $_GET['profEmail'];
$profPass = $_GET['profPass'];

//   $jsonData = array();
$query = "SELECT * FROM Professionals WHERE profEmail='$profEmail' AND profPass='$profPass'";

$result = mysqli_query($link,$query);
if ($result->num_rows > 0) {
    $row = mysqli_fetch_assoc($result);
} else {
    $row = "Login invalid";
}
echo json_encode($row);
mysqli_free_result($result);
mysqli_close($link);