3v4l.org

run code in 500+ PHP versions simultaneously
<?php phpversion() >= "7.0.0" or die(); class FooBar { private $x; public function __construct() { echo "Let's remove a property!", PHP_EOL; unset($this->x); var_dump(property_exists($this, 'x')); } } $foobar = new Foobar;
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
Let's remove a property! bool(true)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
preferences:
53.54 ms | 1257 KiB | 4 Q