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<?php class Foo { public ?string $x; } var_dump(((new ReflectionClass(Foo::class))->getProperty('x'))->getDefaultValue());
Output for 8.5.0
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 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14
NULL
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63.09 ms | 409 KiB | 5 Q