Online PHP editor | output for fK1Wh

Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7: Deprecated: Return type of Foo::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/fK1Wh on line 6 Fatal error: Uncaught Exception: Objects returned by Foo::getIterator() must be traversable or implement interface Iterator in /in/fK1Wh:15 Stack trace: #0 /in/fK1Wh(15): iterator_to_array(Object(Foo)) #1 {main} thrown in /in/fK1Wh on line 15
Process exited with code 255.
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Deprecated: Return type of Foo::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/fK1Wh on line 6 Fatal error: Uncaught Exception: Objects returned by Foo::getIterator() must be traversable or implement interface Iterator in /in/fK1Wh:15 Stack trace: #0 /in/fK1Wh(15): iterator_to_array(Object(Foo)) #1 {main} thrown in /in/fK1Wh on line 15
Process exited with code 255.
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30: Fatal error: Uncaught Exception: Objects returned by Foo::getIterator() must be traversable or implement interface Iterator in /in/fK1Wh:15 Stack trace: #0 /in/fK1Wh(15): iterator_to_array(Object(Foo)) #1 {main} thrown in /in/fK1Wh on line 15
Process exited with code 255.