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<?php class Foo { public $var; public function __construct() { $this->var = '123'; } } class Bar extends Foo { public static function destroyVar($var) { unset($var); } } $foo = new Foo(); Bar::destroyVar($foo->var); var_dump($foo);
Output for git.master, git.master_jit, rfc.property-hooks
object(Foo)#1 (1) { ["var"]=> string(3) "123" }

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