3v4l.org

run code in 300+ PHP versions simultaneously
<?php trait Newable { public static function new() { return new static(); } } class Foo { use Newable; public function meth() : self { return $this; } } var_dump(Foo::new()->meth());
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 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
object(Foo)#1 (0) { }
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Parse error: syntax error, unexpected 'new' (T_NEW), expecting identifier (T_STRING) in /in/ZQLSk on line 4
Process exited with code 255.
preferences:
164.53 ms | 407 KiB | 5 Q