php 屏蔽指定IP或IP段

$denyIp = array('45.34.*','101.96.*');

$nowIp = real_ip();

foreach ($denyIp as $k=>$v)

{

if (strpos($v,'*') >0)

{

if (substr($nowIp,0,strpos($v,'*')) ==  substr($v,0,strpos($v,'*')))

exit();

}

elseif ($nowIp == $v)

exit();

}