3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public ?string $x; } var_dump(((new ReflectionClass(Foo::class))->getProperty('x'))->getDefaultValue());
Output for 8.5.0 - 8.5.3
Deprecated: ReflectionProperty::getDefaultValue() for a property without a default value is deprecated, use ReflectionProperty::hasDefaultValue() to check if the default value exists in /in/G2R3l on line 7 NULL
Output for 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18
NULL
preferences:
57.96 ms | 838 KiB | 4 Q