Method on null object bug.php

<?php

class Person {
  public $name;

  public function __construct($name) {
    $this->name = $name;
  }

  public function getName() {
    return $this->name;
  }
}

function main() {
  $p1 = new Person('Nemo');
  $p2 = NULL;

  var_dump($p1->getName());
  var_dump($p2);
  var_dump($p2->getName());
}

main();

/* Result:

string(4) "Nemo"
NULL
PHP Fatal error:  Call to a member function getName() on a non-object in (somepath)/syntax/nilmethod1.php on line 20
PHP Stack trace:
PHP   1. {main}() (somepath)/syntax/nilmethod1.php:0
PHP   2. main() (somepath)/syntax/nilmethod1.php:23

*/