I've got an array coming back from a Flash app created in Flash Builder 4.

I have a service setup that queries and brings data back from the DB successfully, however the Update script is generating the Undefined Property errors.

I'm still learning both PHP and Flash Builder, and don't fully understand what the $this-> commands do.

If anyone can suggest where this script is going wrong, it is basically just generated by Flash Builder and is not something I've developed myself, I would appreciate it?

Also if someone can explain $this-> to me that would be awesome too?

I've seen them before, but then I've seen scripts doing the same thing that do not use them, so is this an old way of doing things?

Really appreciate any input anyone can give.

    public function updateItem($item) {
    // TODO Auto-generated method stub
    // Update an existing record in the database and return the item

    // Sample code \'

          $this->connect();
          $sql = "UPDATE tbltrust SET inst_code = '$item->inst_code', trust_name = '$item->trust_name', trust_code = '$item->trust_code' WHERE  trust_key = '$item->trust_key'";

          mysqli_query($this->connection, $sql) or die('Query failed: ' . mysqli_error($this->connection));

          mysqli_close($this->connection);

}