3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface Counter { /** @return self */ public function count(); /** @return int */ public function getCount(); } class ImmutableCounter implements Counter { private $count; public function __construct($count = 0) { $this->count = (int) $count; } public function count() { return new ImmutableCounter($this->count + 1); } public function getCount() { return $this->count; } } $counter = new ImmutableCounter(); echo $counter->count()->count()->count()->getCount(); //echo $counter->getCount(); echo ".";
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
3.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/ERaKe on line 2
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 in /in/ERaKe on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ERaKe on line 2
Process exited with code 255.