3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $var = 1; public function dump(self $foo) { var_dump($foo); } } $foo = new Foo(); $foo->var = 10; (new Foo())->dump($foo); (new Foo())->dump(new stdClass);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
object(Foo)#1 (1) { ["var"]=> int(10) } Fatal error: Uncaught TypeError: Foo::dump(): Argument #1 ($foo) must be of type Foo, stdClass given, called in /in/OfhSZ on line 17 and defined in /in/OfhSZ:7 Stack trace: #0 /in/OfhSZ(17): Foo->dump(Object(stdClass)) #1 {main} thrown in /in/OfhSZ on line 7
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
object(Foo)#1 (1) { ["var"]=> int(10) } Fatal error: Uncaught TypeError: Argument 1 passed to Foo::dump() must be an instance of Foo, instance of stdClass given, called in /in/OfhSZ on line 17 and defined in /in/OfhSZ:7 Stack trace: #0 /in/OfhSZ(17): Foo->dump(Object(stdClass)) #1 {main} thrown in /in/OfhSZ on line 7
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
object(Foo)#1 (1) { ["var"]=> int(10) } Catchable fatal error: Argument 1 passed to Foo::dump() must be an instance of Foo, instance of stdClass given, called in /in/OfhSZ on line 17 and defined in /in/OfhSZ on line 7
Process exited with code 255.

preferences:
292.96 ms | 402 KiB | 330 Q