3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function foo() { $string = yield; echo $string; for ($i = 1; $i <= 3; $i++) { yield $i; } } $generator = foo(); $generator->send('Hello world!'); foreach ($generator as $value) echo "$value\n"; ?>
based on rsXrR
Output for 7.0.0 - 7.1.0
Hello world! Fatal error: Uncaught Exception: Cannot rewind a generator that was already run in /in/cXo91:12 Stack trace: #0 {main} thrown in /in/cXo91 on line 12
Process exited with code 255.
Output for hhvm-3.12.0 - 3.13.2
Hello world!1 2 3
Output for hhvm-3.10.0
Fatal error: Uncaught exception 'Exception' with message 'Need to call next() first' in /in/cXo91:11 Stack trace: #0 /in/cXo91(11): Generator->send() #1 {main}
Process exited with code 255.
Output for 5.5.0 - 5.6.28
Hello world! Fatal error: Uncaught exception 'Exception' with message 'Cannot rewind a generator that was already run' in /in/cXo91:12 Stack trace: #0 /in/cXo91(12): unknown() #1 {main} thrown in /in/cXo91 on line 12
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$i' (T_VARIABLE) in /in/cXo91 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/cXo91 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/cXo91 on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/cXo91 on line 6
Process exited with code 255.