3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [['user1' => 20], ['user2' => 30], 3 => ['user3' => 10]]; echo array_sum(array_merge(...$array));
Output for 7.1.0 - 7.1.21, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
60

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132.62 ms | 407 KiB | 5 Q