3v4l.org

run code in 300+ PHP versions simultaneously
<?php $record = [ [ 'firstname' => 'Joe', 'lastname' => 'McDonald' ] ]; echo $record[0]['lastname'];
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 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
McDonald

preferences:
130.23 ms | 404 KiB | 196 Q