3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function __construct() { $this->Data = (object) ['name' => 'John']; } public function bar($property) { return $this->{$property}; } } $foo = new Foo(); print $foo->bar('Data->name');
Output for 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Deprecated: Creation of dynamic property Foo::$Data is deprecated in /in/46HRo on line 6 Warning: Undefined property: Foo::$Data->name in /in/46HRo on line 9
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Warning: Undefined property: Foo::$Data->name in /in/46HRo on line 9
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined property: Foo::$Data->name in /in/46HRo on line 9
Output for 7.3.32 - 7.3.33

preferences:
147.87 ms | 401 KiB | 183 Q