3v4l.org

run code in 500+ PHP versions simultaneously
<?php class FileLocator { public function __construct( protected $autoloader ) {} } class MyFileLocator extends FileLocator { protected $autoloader; public function __construct(Autoloader $autoloader) { $this->autoloader = $autoloader; } }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.32, 8.4.1 - 8.4.23, 8.5.0 - 8.5.8

preferences:
78.69 ms | 1133 KiB | 4 Q