php request and config

[html20009876]

This piece of code is copied from a formal php pack - I changed class names:

class MyBase extends MyTop {	
	public function searching() 
	{   
		.........
		$this->data['boxes'] = array();
		
		if (isset($this->request->post['real_box'])) {
			$this->data['boxes'] = $this->request->post['real_box'];
		} elseif ($this->config->get('real_box')) { 
			$this->data['boxes'] = $this->config->get('real_box');
		}
		........
	}
}

I don't understand this 2 line:

$this->request->post['real_box']
$this->config->get('real_box')

request and config are neither function or variable of this class or parent class.

Are they global function or variable?
Or they are fix php methods?
what are they possibly?

I am a C++ programmer and know little php, I can't get answer from google.

Thanks.


.

[NogDog]

Does the class definition include any __get() and/or __set() methods? (Note that those two method names begin with double underscores.) If so, then it may be using those "magic" methods to get/set one or more class variables.

If not, then it may be assuming that unspecified object variables are possibly being set (not very robust coding, IMO, but allowed), e.g.:

<pre><?php

class Foo
{
    public function bar()
    {
        if(isset($this->unnamed)) {
            return $this->unnamed;
        }
        return null;
    }
}

$foo = new Foo();
$test = $foo->bar();
var_dump($test);
$foo->unnamed = "This is a test.";
$test = $foo->bar();
var_dump($test);
?></pre>

Output:

NULL
string(15) "This is a test."