3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class A implements \Traversable { } $a = new A(); echo count($a);
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Fatal error: Class A must implement interface Traversable as part of either Iterator or IteratorAggregate in Unknown on line 0
Process exited with code 255.
Output for hhvm-3.12.0
1
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.0.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/qWCme on line 3 Fatal error: Class A must implement interface Traversable as part of either Iterator or IteratorAggregate in Unknown on line 0
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/qWCme 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/qWCme on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/qWCme on line 3
Process exited with code 255.