- array_shift: documentation ( source)
- min: documentation ( source)
- array_walk: documentation ( source)
<?php
$array = [
['id' => 1, '10xx' => 14, '11xx' => 32, '12xx' => 4],
['id' => 2, '10xx' => 13, '11xx' => 36, '12xx' => 41]
];
array_walk($array, function($row) {
echo array_shift($row) , " : " , min($row) , "\n";
});