<?php
interface foo {
public function getThing() : \Traversable;
}
class mything implements foo
{
public function getThing() : \ArrayIterator
{
return new \ArrayIterator([]);
}
}
$xxx = new mything;
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
Fatal error: Declaration of mything::getThing(): ArrayIterator must be compatible with foo::getThing(): Traversable in /in/OXL0o on line 7
Process exited with code 255.
Output for 5.6.38
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/OXL0o on line 4
Process exited with code 255.