Are there any libraries to access MySQL server via PHP bridge?

Question

PHP

I would like to write a client-side application that works with data located in a MySQL database on shared PHP hosting and at the same time does not bother with writing a web service in PHP, but directly accesses the database with SLQ queries from the client.
Many desktop applications for administering MySQL databases offer a connection via a PHP bridge (upload a PHP file to the hosting, set a URL on the client and connect to it).
Are there any such solutions bundled with the client library?
Interested in answers for .Net, JavaScript, Java.

Answer 1

Hmmmmm, but if it's just

<?
$key="key";
if(hash_equals($key,$POST["key"])){
   $pdo=new PDO(....);
   $res=[];
   $res["res"]=$pdo->query($POST["query"]);
   $res["err"]=$pdo->errorInfo();
   echo json_encode($res);
}
else
   echo "gtfo";
?>

Answer 2

If you do not want to bother with the implementation of a web service, here are two options for you. Apparently, both will suit you (since you only need a database, then you don’t have a very complicated business logic and you need the good old CRUD from the server)
Perhaps you should look towards DBMS that provide a REST interface out of the box (or almost)? For example mongodb. There is also mongolab.com and compose.io
and there is parse.com