3v4l.org

run code in 300+ PHP versions simultaneously
<?php $row['fname'] = 'test'; $row['fname'] = 'test2'; echo $row['fname'];
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.30, 7.4.0 - 7.4.23, 8.0.0 - 8.0.10, 8.1rc1 - rc2
test2

preferences:
78.66 ms | 459 KiB | 5 Q