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<?php readonly class Foo { public function __construct( public int $value, ) {} } $foo = new Foo(42); var_dump($foo); $ao = new ArrayObject($foo); $ao['value'] = 666; var_dump($foo);
Output for 8.5.0
object(Foo)#1 (1) { ["value"]=> int(42) } Deprecated: ArrayObject::__construct(): Using an object as a backing array for ArrayObject is deprecated, as it allows violating class constraints and invariants in /in/4Fbgr on line 13 object(Foo)#1 (1) { ["value"]=> int(666) }
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
object(Foo)#1 (1) { ["value"]=> int(42) } object(Foo)#1 (1) { ["value"]=> int(666) }

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