3v4l.org

run code in 300+ PHP versions simultaneously
<?= ucfirst('example string') ?>
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.30, 8.0.0 - 8.0.22, 8.1.0 - 8.1.9
Example string

preferences:
50.53 ms | 413 KiB | 6 Q