- array_intersect_assoc: documentation ( source)
- array_reverse: documentation ( source)
- explode: documentation ( source)
- array_keys: documentation ( source)
- range: documentation ( source)
<?php
$zoneparts = array_reverse(explode('.',"11.0.127"));
$parts = explode('.',"127.0.11.1");
$intersect = array_intersect_assoc($zoneparts,$parts);
if(array_keys($intersect) === range(0, count($intersect)-1)) {
echo "fu";
}
?>