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@ 2020-06-26T22:49:42Z

<?php

class A { public ?int $var; }

$a = new A();
$b = new A();
$b->var = null;

var_dump(isset($a->var));
var_dump(isset($b->var));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

128.22 ms | 404 KiB | 5 Q