3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = new SplQueue(); $a->enqueue('a'); $a->enqueue('b'); $a->enqueue('c'); while($a->valid()) { echo $a->current().PHP_EOL; $a->next(); } $a->rewind(); while($a->valid()) { echo $a->current().PHP_EOL; $a->next(); }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 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 - 8.3.6
a b c
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Fatal error: Class 'SplQueue' not found in /in/Kgi32 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: splqueue in /in/Kgi32 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: splqueue in /in/Kgi32 on line 3
preferences:
236.43 ms | 401 KiB | 309 Q