- print_r: documentation ( source)
- explode: documentation ( source)
<?php
$ranges = explode(',', '221-231,232-242,243-253,254-264,265-275,276-286,287-297,298-308,309-319,320-330,331-341,342-352');
$rackIds = array();
foreach($ranges as $range) {
$racks = explode('-', $range);
$start = $racks[0];
$end = $racks[1];
for ($i = $start; $i <= $end; $i++) {
$rackIds[] = $i;
}
}
print_r($rackIds);