3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class test{ public $p1; public function __construct() { $this->p1 = ""; } } $a = new test(); var_dump(isset($a->p1));
based on X7vHi
Output for 5.6.0 - 7.3.0beta1
bool(true)