<?php $arr = [ ['alpha', 1, 2, 3, 4, 5], ['beta', 1, 2, 3, 4, 5], ['gamma', 1, 2, 3, 4, 5], ['delta', 1, 2, 3, 4, 5] ]; var_export( array_map(fn(...$col) => is_numeric($col[0]) ? array_sum($col) : '', ...$arr) );
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