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<?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);
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
Array ( )
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