<?php $arr = Array( 174110 => Array ( 0 => 10, 1 => 20, 2 => 400, 3 => 150, ), 176545 => Array ( 0 => 30, 1 => 20, 2 => 900, 3 => 750, ) ); $result_1 = array(); $result_2 = array(); foreach ($arr as $key => $_arr) { $result_1[$key] = min($_arr); } $result_2 = array_map('min', $arr); var_dump($result_1, $result_2);
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