<?Php $Id = $_POST['id']; $isLiked = $_POST['isLiked']; try { $connection

Question

<?Php $Id = $_POST['id']; $isLiked = $_POST['isLiked']; try { $connection

= mysqli_connect($hostname, $username, $password, $databasename);
$query = "SELECT likes FROM posts WHERE id=$id";
$result = mysqli_query($connection, $query);

$array = mysqli_fetch_assoc($result);
$likes = $array['likes'];

if ($isLiked == true) {

$updateQuery = "UPDATE posts SET likes = $likes++";

} else {

$updateQuery = "UPDATE posts SET likes = $likes--";

}
mysqli_query($connection, $updateQuery);

} catch (mysqli_sql_exception $e) {

echo "failed\t$e";
}