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<?php class Foo { public function __construct( public readonly int $bar, ) {} } $foo = new Foo(1); $ao = new ArrayObject($foo); $ao['bar'] = 'hello world'; var_dump($foo);
Output for 8.5.0
Deprecated: ArrayObject::__construct(): Using an object as a backing array for ArrayObject is deprecated, as it allows violating class constraints and invariants in /in/KOWT9 on line 10 object(Foo)#1 (1) { ["bar"]=> string(11) "hello world" }
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 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14
object(Foo)#1 (1) { ["bar"]=> string(11) "hello world" }

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