3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class It implements Iterator { private $arr = [1,2,3]; public function key() { echo __METHOD__ . "\n"; return key($this->arr); } public function current() { echo __METHOD__ . "\n"; return current($this->arr); } public function rewind() { echo __METHOD__ . "\n"; reset($this->arr); } public function next() { echo __METHOD__ . "\n"; next($this->arr); } public function valid() { echo __METHOD__ . "\n"; return key($this->arr) !== null; } } $it = new It; foreach ($it as $k => $v) {}
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
It::rewind It::valid It::current It::key It::next It::valid It::current It::key It::next It::valid It::current It::key It::next It::valid
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/IK01f on line 5
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/IK01f on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/IK01f 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/IK01f on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/IK01f on line 3
Process exited with code 255.