3v4l.org

run code in 300+ PHP versions simultaneously
<?php $objects = [ [ 'amount' => 1], [ 'amount' => 2], [ 'amount' => null], ]; $sum = array_sum(array_column($objects,'amount')); echo $sum;
Output for 7.0.19, 7.3.24 - 7.3.33, 7.4.12 - 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
3

preferences:
105.81 ms | 402 KiB | 115 Q