3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "HERE 1\n"; mb_internal_encoding ("UTF-8"); echo "HERE 2\n"; ?>
Output for 5.6.0 - 5.6.27, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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 - 8.2.18, 8.3.0 - 8.3.6
HERE 1 HERE 2
preferences:
198.61 ms | 403 KiB | 203 Q