<?php function flatten_array($array) { foreach ($array as $i => $items) { foreach ($items as $key => $value) { $ar[$key.'-'.($i+1)] = $value; } } } // this line generates a 10x10 multi-d array $a = array_fill(0, 10, array_fill(0, 10, 0)); $flat_array = flatten_array($a); var_dump($flat_array);
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