Return variable from within object like array

A rather cryptic title, but it's difficult to phrase.

Say I have an object from mysql_fetch_object(). I want to use a getter to return a value from a column.

For example, in a class, we have $this->data. How can I return say $this->data->id (ID column from table) using an argument from the getter function.

This won't work, but somethi开发者_如何学Pythonng along the lines of:

public function data($key)
{
    return $this->data[$key];
}

Thanks for any help.

what about return $this->data->$key ?

or if you implement ArrayAccess, return $this->data->$key from the offsetGet() function, then you can use $object[$key] to retrieve the data

I think what you're searching for are variable variables.

But using mysql_fetch_assoc might be better suited for what you want to do.

Maybe your looking for __get method ? http://php.net/manual/en/language.oop5.overloading.php Not really sure about what you're looking for.

something like.

public function __get($name) {
    if (array_key_exists($name, $this->data)) {
        return $this->data[$name];
    }

    return null;
}

Now you can access your data as $obj->key