3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function printer() { $string = yield; yield $string; return; } $printer = printer(); $printer->send('Hello world!'); foreach ($printer as $greeting) { echo $greeting; } ?>
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Exception: Cannot rewind a generator that was already run in /in/HDeGi:10 Stack trace: #0 {main} thrown in /in/HDeGi on line 10
Process exited with code 255.
Output for 5.5.0 - 5.6.28
Fatal error: Uncaught exception 'Exception' with message 'Cannot rewind a generator that was already run' in /in/HDeGi:10 Stack trace: #0 /in/HDeGi(10): unknown() #1 {main} thrown in /in/HDeGi on line 10
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$string' (T_VARIABLE) in /in/HDeGi on line 4
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_VARIABLE in /in/HDeGi on line 4
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_VARIABLE in /in/HDeGi on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/HDeGi on line 4
Process exited with code 255.