<?php $string = '1, 4, 7, 20-25, 31, 46-48, 100'; $array = explode(',', $string); $array = array_map('trim', $array); $array_aux = array(); for ($i = 0; $i < count($array); $i++) { if (!is_numeric($array[$i])) { $new_array = explode('-', $array[$i]); for ($j = $new_array[0]; $j <= $new_array[1]; $j++) { array_splice($array_aux, 0, 0, $j); } unset($array[$i]); } } $array = array_merge($array, $array_aux); sort($array); print_r($array);
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