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run code in 500+ PHP versions simultaneously
<?php interface Foo { public function render(bool $x = false); } class X implements Foo { public function render(bool $x = null) { var_dump($x); } } (new X())->render();
Output for 8.4.1 - 8.4.23, 8.5.0 - 8.5.8
Deprecated: X::render(): Implicitly marking parameter $x as nullable is deprecated, the explicit nullable type must be used instead in /in/BiJVZ on line 10 NULL
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.32
NULL
preferences:
91.98 ms | 1393 KiB | 4 Q