3v4l.org

run code in 300+ PHP versions simultaneously
<?php if(true): ?> <?php echo 'Hello' ?> <?php echo 'World!' ?> <?php $i = 0 ?> <?php while($i < 10): ?> <?php echo $i, "\n" ?> <?php ++$i ?> <?php endwhile ?> <?php endif ?>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Hello World! 0 1 2 3 4 5 6 7 8 9
preferences:
273.13 ms | 406 KiB | 462 Q