3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo 48 >> 4; echo PHP_EOL; echo 50 >> 4; echo PHP_EOL; echo 63 >> 4; echo PHP_EOL; echo 50 << 4; echo PHP_EOL; echo 51 << 4; echo PHP_EOL;
Output for 5.6.38, 7.1.0 - 7.1.23, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
3 3 3 800 816
preferences:
161.46 ms | 407 KiB | 5 Q