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<?php class A{ public $stuff; } $x = new A; var_dump(property_exists($x, "stuff")); var_dump($x->stuff); (unset)$x->stuff; var_dump(property_exists($x, "stuff")); var_dump($x->stuff);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: The (unset) cast is no longer supported in /in/P4Vd6 on line 11
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: The (unset) cast is deprecated in /in/P4Vd6 on line 11 bool(true) NULL bool(true) NULL
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.3.32 - 7.3.33
bool(true) NULL bool(true) NULL

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