3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?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, $array_aux); asort($array); var_dump($array);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(14) { [0]=> string(1) "1" [1]=> string(1) "4" [2]=> string(1) "7" [13]=> string(2) "20" [12]=> int(21) [11]=> int(22) [10]=> int(23) [9]=> int(24) [8]=> int(25) [3]=> string(2) "31" [7]=> string(2) "46" [6]=> int(47) [5]=> int(48) [4]=> string(3) "100" }