<?php
class Foo implements IteratorAggregate { public function getIterator() { return new ArrayIterator([]); }}
function foo(iterable $bar) { var_dump($bar); }
foo(new Foo());
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/ios53 on line 3
object(Foo)#1 (0) {
}
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/ios53 on line 3
object(Foo)#1 (0) {
}
Fatal error: Uncaught TypeError: Argument 1 passed to foo() must be an instance of iterable, instance of Foo given, called in /in/ios53 on line 7 and defined in /in/ios53:5
Stack trace:
#0 /in/ios53(7): foo(Object(Foo))
#1 {main}
thrown in /in/ios53 on line 5
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Catchable fatal error: Argument 1 passed to foo() must be an instance of iterable, instance of Foo given, called in /in/ios53 on line 7 and defined in /in/ios53 on line 5
Process exited with code 255.