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run code in 300+ PHP versions simultaneously
<?php class A { private $p1 = "secret"; public function B() { var_dump($this); ${'t' . 'his'} = 'hidden'; // works var_dump($this); echo $this . ' ' . $this->p1; var_dump($GLOBALS['this']); $GLOBALS['this'] = 'lovely'; var_dump($this, $GLOBALS['this']); echo $this . ' ' . $this->p1; } } $a = new A; $a->B();

preferences:
34.09 ms | 402 KiB | 5 Q