3v4l.org

run code in 300+ PHP versions simultaneously
<?php phpversion() >= "7.0.0" or die(); class FooBar { public function __construct() { var_dump($this); echo "Let's remove a property!", PHP_EOL; unset($this->x); var_dump($this); echo "Let's add a property!", PHP_EOL; $this->x = 2; var_dump($this); echo "Where did the private come from?", PHP_EOL; } } $foobar = new Foobar;
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.25, 7.3.0 - 7.3.12, 7.4.0
object(FooBar)#1 (0) { } Let's remove a property! object(FooBar)#1 (0) { } Let's add a property! object(FooBar)#1 (1) { ["x"]=> int(2) } Where did the private come from?
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
preferences:
106.16 ms | 402 KiB | 92 Q