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run code in 300+ PHP versions simultaneously
<?php class Foo implements IteratorAggregate { public function getIterator() { return new ArrayIterator([]); }} function foo(iterable $bar) { var_dump($bar); } foo(new Foo());
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
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) { }
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
object(Foo)#1 (0) { }
Output for 7.0.0 - 7.0.33
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.

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