3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class A implements IteratorAggregate { public $b; public function __construct(B $b) { $this->b = $b; } public function getIterator() { return $this->b; } } class B implements IteratorAggregate { public function getIterator() { for ($i = 0; $i < 5; $i++) { yield $i => $i; } } } $a = new A(new B); foreach ($a as $key => $value) { var_dump($key, $value); }
Output for 5.5.24 - 7.1.0
int(0) int(0) int(1) int(1) int(2) int(2) int(3) int(3) int(4) int(4)
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$i' (T_VARIABLE) in /in/FjfK7 on line 16
Process exited with code 255.
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_VARIABLE in /in/FjfK7 on line 16
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_VARIABLE in /in/FjfK7 on line 16
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/FjfK7 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/FjfK7 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/FjfK7 on line 3
Process exited with code 255.