3v4l.org

run code in 500+ PHP versions simultaneously
<?php class Foo { public function __get($prop) { echo "__set($prop)\n"; Fiber::suspend(); } } $foo = new Foo(); $fiber = new Fiber(function () use ($foo) { $foo->bar; }); $value = $fiber->start(); $foo->bar; $fiber->resume('test');
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
__set(bar) Warning: Undefined property: Foo::$bar in /in/ju5mp on line 17

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56.01 ms | 980 KiB | 4 Q