3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace Foo { class Test { public function __construct() { echo "Hello "; } } } namespace { class Foo { public function __construct() { echo "World"; } } } namespace Bob { use Foo as Bar; new Bar\Test; new Bar; }
Output for 7.0.0 - 7.0.25, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Hello World
preferences:
89.11 ms | 408 KiB | 5 Q