3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); class Foo { public static $useColors; } var_dump(Foo::$useColors); class Bar { public static bool $useColors; } var_dump(Bar::$useColors);
Output for 7.4.18, 8.0.1 - 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
NULL Fatal error: Uncaught Error: Typed static property Bar::$useColors must not be accessed before initialization in /in/dmghh:15 Stack trace: #0 {main} thrown in /in/dmghh on line 15
Process exited with code 255.
preferences:
80.35 ms | 407 KiB | 5 Q