3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function printer() { $string = (yield 3); echo $string; } $printer = printer(); foreach($printer as $v) { var_dump($v); } $printer->next(); $printer->send('Hello world!'); ?>
based on SWuB8
Output for 5.5.24 - 5.6.28, 7.0.0 - 7.1.0
int(3)
Output for hhvm-3.12.0
int(3) Fatal error: Uncaught exception 'Exception' with message 'Generator is already finished' in /in/5jW2o:11 Stack trace: #0 /in/5jW2o(11): Generator->next() #1 {main}
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '3' (T_LNUMBER) in /in/5jW2o on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_LNUMBER in /in/5jW2o on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_LNUMBER in /in/5jW2o on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/5jW2o on line 3
Process exited with code 255.