Online PHP editor | refs for 0eqvj

<?php $array = [ [['value' => 1100], ['value' => 1000], ['value' => 3000]], [['value' => 1200], ['value' => 2000], ['value' => 2000]], [['value' => 1300], ['value' => 4000], ['value' => 1000]], ]; var_export( array_map(fn(...$col) => $col, ...$array) // to demonstrate transposition ); echo "\n---\n"; var_export( array_map( fn(...$col) => array_sum(array_column($col, 'value')), ...$array ) );