3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(pathinfo('test.csv', PATHINFO_EXTENSION));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
string(3) "csv"
preferences:
65.55 ms | 402 KiB | 61 Q