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@ 2022-10-01T22:35:06Z

<?php

function foo(\Foo\Bar&\Foo\Baz $param = null) { var_dump($param); }

foo(null);

Output
Performance
VLD
References
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var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

24.78 ms | 474 KiB | 4 Q