<?php $arr = array(array( "2"=> 6, "5"=> 1 ), array( "2"=> 1, "5"=> 3 )); $arr = []; $keys = array_keys(reset($arr) ?: []); $res = array_combine( $keys, array_map( fn ($k) => max(array_column($arr, $k)), $keys) ); print_r($res);
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Value for `_results` contains invalid data `array`