3v4l.org

run code in 300+ PHP versions simultaneously
<?php $it = (function () { if (false) { yield 'foo'; }})(); var_dump($it->valid()); foreach ($it as $k => $v) { var_dump($k, $v); }
Output for 7.1.0 - 7.1.24, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
bool(false) Fatal error: Uncaught Exception: Cannot traverse an already closed generator in /in/2E7EJ:7 Stack trace: #0 {main} thrown in /in/2E7EJ on line 7
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 bool(false) Fatal error: Uncaught Exception: Cannot traverse an already closed generator in /in/2E7EJ:7 Stack trace: #0 {main} thrown in /in/2E7EJ on line 7
Process exited with code 255.
Output for 5.6.38
Parse error: syntax error, unexpected '(' in /in/2E7EJ on line 3
Process exited with code 255.

preferences:
126.05 ms | 401 KiB | 178 Q