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run code in 300+ PHP versions simultaneously
<?php class ClosureTester { public function foo() { return 'bar'; } public function someMethod() { $self = $this; $closure = function() use ($self) { return 'closure'; }; return $closure(); } } $c = new ClosureTester(); var_dump($c->someMethod());

preferences:
48.89 ms | 402 KiB | 5 Q