<?php
$username = $_REQUEST['username'];
$pass = $_REQUEST['pass'];

$host_name  = "db707901701.db.1andsd1.com";
$database   = "db7dsds1";
$user_name  = "dbo70790ddsdsd01";
$password   = "D@not_3nt3r";

$connect = mysqli_connect($host_name, $user_name, $password, $database);

$select = "SELECT * FROM userstasker WHERE username='$username' AND password='$pass'";

$result = $connect->query($select);

if ($result->num_rows > 0) {
    echo true;
} else {
    echo false;
}
$connect->close();

?>

public void login(){
        String username = etUsername.getText().toString().trim();
        String password = etPassword.getText().toString().trim();
        SOService service = ApiUtils.getSOService();
        Call<ResponseBody> req = service.userExists(username,password);

        req.enqueue(new Callback<ResponseBody>() {
            String result;

            @Override
            public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
                try {
                    Log.d("USEREXISTS Exito::", "" + response.body().string());
                    result = response.body().string();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                Toast.makeText(LoginActivity.this, result,Toast.LENGTH_LONG).show();
                if(result.equals("1")){
                    Intent intent = new Intent(LoginActivity.this,TasksActivity.class);
                    startActivity(intent);
                }else{
                    Toast.makeText(getApplicationContext(), Utilities.USERNAME_PASSWORD_INCORRECT,Toast.LENGTH_LONG).show();
                }
            }

            @Override
            public void onFailure(Call<ResponseBody> call, Throwable t) {
                Log.d("USEREXISTS Fail::", t.getMessage());
            }
        });

    }