3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function nums() { for ($i = 0; $i < 5; ++$i) { //get a value from the caller $cmd = (yield $i); if($cmd == 'stop') return;//exit the function } } $gen = nums(); foreach($gen as $v) { if($v == 3)//we are satisfied $gen->send('stop'); echo "{$v}\n"; }
Output for 5.5.24 - 5.6.28, 7.0.0 - 7.1.0
0 1 2 3
Output for hhvm-3.12.0
0 1 2 3 Fatal error: Uncaught exception 'Exception' with message 'Generator is already finished' in /in/9bBGH:20 Stack trace: #0 /in/9bBGH(20): Generator->next() #1 {main}
Process exited with code 255.
Output for hhvm-3.10.0
0 1 2 3 Fatal error: Uncaught exception 'Exception' with message 'Generator is already finished' in /in/9bBGH:-1 Stack trace: #0 /in/9bBGH(-1): Generator->next() #1 {main}
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$i' (T_VARIABLE) in /in/9bBGH on line 6
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/9bBGH on line 6
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/9bBGH on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/9bBGH on line 6
Process exited with code 255.