3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function count_to_ten() { yield 1; yield 3 => 2; $cmd = ''; yield from [3, 4]; var_dump($cmd); if ($cmd == 't') { echo "close"; return false; } yield from new ArrayIterator([5, 6]); yield from seven_eight(); return yield from nine_ten(); } function seven_eight() { yield 7; yield from eight(); } function eight() { yield 8; } function nine_ten() { yield 9; return 10; } $gen = count_to_ten(); foreach ($gen as $k => $num) { echo "\n-$k -> $num \n"; echo $gen->send('t'); } var_dump( $gen->getReturn());
based on IfA3J
Output for 7.0.0 - 7.2.6
-0 -> 1 2 -0 -> 3 4string(0) "" -0 -> 5 6 -0 -> 7 8 -0 -> 9 int(10)
Output for hhvm-3.15.4
-0 -> 1 -0 -> 3 tstring(0) "" -0 -> 5 t -0 -> 7 -0 -> 9 Fatal error: Uncaught exception 'Exception' with message 'Generator is already finished' in /in/nXCEK:37 Stack trace: #0 /in/nXCEK(37): Generator->next() #1 {main}
Process exited with code 255.
Output for 5.6.0 - 5.6.30
Parse error: syntax error, unexpected ',', expecting ']' in /in/nXCEK on line 7
Process exited with code 255.