Question

take this example:

class Parent
{
    public function __construct()
    {
        $this->config = array('a' => 'b');
        $this->child = new Child();
    }

    public function calling()
    {
        $this->config['b'] = 'b';
        $this->child->answering();
    }
}

class Child
{
    public function answering()
    {
        return $this->config['b'];
    }
}

p.s. I know returning $this->config['b'] won’t work, but I didn’t know how to return what I wanted so I inserted that as a filler.

how can I instantiate the Child class into the Parent class and somehow access the parent variable config inside of the child class.

Answer 1

Use a function?

class Child
{
   public function foo(&$config) {
      // do stuff with $config
   }
}

class Parent
{
   public function bar() {
      $Child = new Child();
      $Child->foo($this->config);
      echo $this->config; // config should change to whatever Child last set it too

   }
}