<?php $array = [ ['parent 1', '10000', '20000'], ['parent 1', '15000', '21000'], ['parent 2', '13000', '22000'], ['parent 2', '11000', '5000'], ]; $new_array = array(); foreach($array as $a) { $temp = array_slice($a, 1); if(!array_key_exists($a[0], $new_array)) { $new_array[$a[0]] = array(); } array_push($new_array[$a[0]], $temp); } print_r($new_array) ?>
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