str_repeat ( "1", 32 - $mask ) //inverse mask $inverseMaskBinStr = str_repeat ( "0", $mask ). str_repeat ( "0", 32 - $mask ) //net mask binary string
$maskBinStr = str_repeat ( "1", $mask ). List( $ip, $mask ) = explode ( '/', $cidr ) * Each element of $ipArray's type is long int,use long2ip( $ipArray ) to convert it into ip string. "first ip of the network", 1=>"last ip of the network" ) $hexipbang = explode ( '.', chunk_split ( $int_ip, 2, '.' )) If ( strlen ( $zero ) > strlen ( $match )) Print "Broadcast: $ip -> broadcast ()\n" Return the inverse mask of the netmask Return ( long2ip ( ip2long ( $this -> network ()) Return the broadcast that the address sits in Return ( long2ip (( ip2long ( $this -> address )) Return the network that the address sits in Public function check ( $ip, $allowed_ips = null )
With this example you are able to check if a given host is in your own local net or not (on linux):īased on examples above I have mixed class IPFilter with netMatch function wich gives me complete class for IP4 check including CIDR IP format: To get the network adress out of the broadcast adress and netmask just to an AND on it:
#Ip address to binary converter online archive
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