php - How can I make this IP checking snippet more efficient? -


i have short snippet of code work out if particular ip address allowed run script:

$allowable_ips = array(     '192.168.0.',     '8.8.8.8', );  $is_allowed = (bool) array_filter(array_map(function($value){     return (substr($_server['remote_addr'], 0, strlen($value)) == $value); }, $allowable_ips));  if(!$is_allowed) {     die('denied.'); }

could code shortened further?

you skip array_map part , use array_filter

$is_allowed = (bool) array_filter($allowable_ips,function($value){     return (substr($_server['remote_addr'], 0, strlen($value)) == $value); });

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