3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo Serialize ( array ( 'page' => 1, 'per_page' => 100, 'fields' => array( 'last_updated' => true, 'downloaded' => true, 'icons' => true ) ) );
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
a:3:{s:4:"page";i:1;s:8:"per_page";i:100;s:6:"fields";a:3:{s:12:"last_updated";b:1;s:10:"downloaded";b:1;s:5:"icons";b:1;}}

preferences:
235.67 ms | 406 KiB | 337 Q