<?php
$array = ["1","2","5-10","15-20"];
foreach($array as $number){
}
else{
$new_array[] = (int) $number;
}
}
PD9waHAKJGFycmF5ID0gWyIxIiwiMiIsIjUtMTAiLCIxNS0yMCJdOwoKCiRuZXdfYXJyYXkgPSBhcnJheSgpOyAgCgpmb3JlYWNoKCRhcnJheSBhcyAkbnVtYmVyKXsKICBpZihzdHJwb3MoJG51bWJlciwnLScpKXsKICAgICAkcmFuZ2UgPSBleHBsb2RlKCctJywgJG51bWJlcik7ICAKICAgICAkbmV3X2FycmF5ID0gYXJyYXlfbWVyZ2UoJG5ld19hcnJheSwgcmFuZ2UoJHJhbmdlWzBdLCRyYW5nZVsxXSkpOwogIH0gCiAgZWxzZXsKICAgICAkbmV3X2FycmF5W10gPSAoaW50KSAkbnVtYmVyOwogIH0KfQoKdmFyX2R1bXAoJG5ld19hcnJheSk7