PHP access class inside another class

Question

So I have two classes like this:

class foo {
    /* code here */
}
$foo = new foo();
class bar {
    global $foo;
    public function bar () {
        echo $         


        

Answer 1

You could do like this too:

class bar {
    private $foo = null;

    function __construct($foo_instance) {
      $this->foo = $foo_instance;
    }

    public function bar () {
        echo $this->foo->something();
    }
    public function barMethod () {
        echo $this->foo->somethingElse();
    }
    /* etc, etc. */
}

Later you could do:

$foo = new foo();
$bar = new bar($foo);