3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class A implements IteratorAggregate{ public function getIterator(){ return new B(); } } class B implements IteratorAggregate{ public function getIterator(){ return new C(); } } class C implements IteratorAggregate{ public function getIterator(){ return new ArrayIterator(array(1, 2, 3, 4, 5)); } } $a = new A(); foreach ($a as $aa){ echo $aa; }
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
12345
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/fEv5T on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/fEv5T on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/fEv5T on line 3
Process exited with code 255.