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<?php $array = ['+5', '+5', '+3', '+3', '+3', '+3', '+5', '+5']; $total = 0; foreach (array_count_values($array) as $value => $count) { $total += $value * ($count - ($count > 1)); } echo $total;
Output for 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
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157.64 ms | 402 KiB | 152 Q