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<?php class TT{ private $that; public function __construct(){ $this->that = &$this; } public function poop(){ var_dump( $this ); } } class TT_B extends TT{ public function that(){ unset( $this->that ); $this->poop(); } } $a = new TT_B; $a->that();
Output for git.master, git.master_jit, rfc.property-hooks
object(TT_B)#1 (1) { ["that":"TT":private]=> *RECURSION* }

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