3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function mutate($value, Generator $mutator) { while ($mutator->valid()) { try { $fn = $mutator->current(); $value = $fn($value); $mutator->send($value); } catch (Exception $e) { $mutator->throw($e); } } return $value; } $mutations = [ function ($n) { return $n + 1; }, function ($n) { return $n + 2; }, function ($n) { return $n + 3; }, function ($n) { return $n + 4; }, ]; function debuggingMutator(array $mutations) { foreach ($mutations as $mutation) { $result = (yield $mutation); echo "Result: {$result}\n"; } } $result = mutate(0, debuggingMutator($mutations)); var_dump($result);
based on IIStN
Output for 5.5.24 - 7.2.0
Result: 1 Result: 3 Result: 6 Result: 10 int(10)
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$mutation' (T_VARIABLE) in /in/J2L92 on line 28
Process exited with code 255.
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/J2L92 on line 18
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/J2L92 on line 18
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '&' or T_VARIABLE or T_CONST in /in/J2L92 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 '&' or T_VARIABLE or T_CONST in /in/J2L92 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'&'' or `T_VARIABLE' or `T_CONST' in /in/J2L92 on line 3
Process exited with code 255.