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<?php $x = new ArrayObject(null, ArrayObject::STD_PROP_LIST); $x->a = 'abc'; echo $x->serialize(), "\n"; $x->unserialize(array(1,2,3)); echo $x->serialize();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught TypeError: ArrayObject::__construct(): Argument #1 ($array) must be of type array, null given in /in/ms9oV:3 Stack trace: #0 /in/ms9oV(3): ArrayObject->__construct(NULL, 1) #1 {main} thrown in /in/ms9oV on line 3
Process exited with code 255.
Output for 7.0.20, 7.1.5 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught InvalidArgumentException: Passed variable is not an array or object in /in/ms9oV:3 Stack trace: #0 /in/ms9oV(3): ArrayObject->__construct(NULL, 1) #1 {main} thrown in /in/ms9oV on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.14, 7.1.0
Fatal error: Uncaught InvalidArgumentException: Passed variable is not an array or object, using empty array instead in /in/ms9oV:3 Stack trace: #0 /in/ms9oV(3): ArrayObject->__construct(NULL, 1) #1 {main} thrown in /in/ms9oV on line 3
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Fatal error: Uncaught exception 'InvalidArgumentException' with message 'Passed variable is not an array or object, using empty array instead' in /in/ms9oV:3 Stack trace: #0 /in/ms9oV(3): ArrayObject->__construct(NULL, 1) #1 {main} thrown in /in/ms9oV on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Undefined class constant 'STD_PROP_LIST' in /in/ms9oV on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected ')', expecting '(' in /in/ms9oV on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected ')', expecting '(' in /in/ms9oV on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'('' in /in/ms9oV on line 3
Process exited with code 255.

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