getprotobyname

Description
Syntax
Examples
Links

Description

The getprotobyname of Network for PHP get protocol number associated with protocol name.

Syntax

getprotobyname(
    string $protocol
): int|false

Parameters

protocol

The protocol name.

Return

Returns the protocol number, or false on failure.

Examples

1 · protocol

<?

$protocol = 'tcp';

$return = getprotobyname($protocol);

echo $return;

?>

2

<?

$array = ['ip', 'icmp', 'igmp', 'ggp', 'ipv4', 'st', 'tcp', 'cbt', 'egp', 'igp', 'bbn-rcc', 'nvp', 'pup', 'argus', 'emcon', 'xnet', 'chaos', 'udp', 'mux', 'dcn', 'hmp', 'prm', 'xns-idp', 'trunk-1', 'trunk-2', 'leaf-1', 'leaf-2', 'rdp', 'irtp', 'iso-tp4', 'netblt', 'mfe-nsp', 'merit-inp', 'dccp', '3pc', 'idpr', 'xtp', 'ddp', 'idpr-cmtp', 'tp++', 'il', 'ipv6', 'sdrp', 'ipv6-route', 'ipv6-frag', 'idrp', 'rsvp', 'gre', 'dsr', 'bna', 'esp', 'ah', 'i-nlsp', 'swipe', 'narp', 'mobile', 'tlsp', 'skip', 'ipv6-icmp', 'ipv6-nonxt', 'ipv6-opts', 'cftp', 'sat-expak', 'kryptolan', 'rvd', 'ippc', 'sat-mon', 'visa', 'ipcv', 'cpnx', 'cphb', 'wsn', 'pvp', 'br-sat-mon', 'sun-nd', 'wb-mon', 'wb-expak', 'iso-ip', 'vmtp', 'secure-vmtp', 'vines', 'ttp', 'nsfnet-igp', 'dgp', 'tcf', 'eigrp', 'ospf', 'sprite-rpc', 'larp', 'mtp', 'ax.25', 'ipip', 'micp', 'scc-sp', 'etherip', 'encap', 'gmtp', 'ifmp', 'pnni', 'pim', 'aris', 'scps', 'qnx', 'a/n', 'ipcomp', 'snp', 'compaq-peer', 'ipx-in-ip', 'vrrp', 'pgm', 'l2tp', 'ddx', 'iatp', 'stp', 'srp', 'uti', 'smp', 'sm', 'ptp', 'isis', 'fire', 'crtp', 'crudp', 'sscopmce', 'iplt', 'sps', 'pipe', 'sctp', 'fc', 'rsvp-e2e-ignore', 'mobility-header', 'udplite', 'mpls-in-ip', 'manet', 'hip', 'shim6', 'wesp', 'rohc'];

for($i = 0; $i < count($array); ++$i)
{
    $protocol = $array[$i];

    $return = getprotobyname($protocol);

    echo "$return: $protocol\n";
}

?>

0: ip
1: icmp
2: igmp
3: ggp
4: ipv4
5: st
6: tcp
7: cbt
8: egp
9: igp
10: bbn-rcc
11: nvp
12: pup
13: argus
14: emcon
15: xnet
16: chaos
17: udp
18: mux
19: dcn
20: hmp
21: prm
22: xns-idp
23: trunk-1
24: trunk-2
25: leaf-1
26: leaf-2
27: rdp
28: irtp
29: iso-tp4
30: netblt
31: mfe-nsp
32: merit-inp
33: dccp
34: 3pc
35: idpr
36: xtp
37: ddp
38: idpr-cmtp
39: tp++
40: il
41: ipv6
42: sdrp
43: ipv6-route
44: ipv6-frag
45: idrp
46: rsvp
47: gre
48: dsr
49: bna
50: esp
51: ah
52: i-nlsp
53: swipe
54: narp
55: mobile
56: tlsp
57: skip
58: ipv6-icmp
59: ipv6-nonxt
60: ipv6-opts
62: cftp
64: sat-expak
65: kryptolan
66: rvd
67: ippc
69: sat-mon
70: visa
71: ipcv
72: cpnx
73: cphb
74: wsn
75: pvp
76: br-sat-mon
77: sun-nd
78: wb-mon
79: wb-expak
80: iso-ip
81: vmtp
82: secure-vmtp
83: vines
84: ttp
85: nsfnet-igp
86: dgp
87: tcf
88: eigrp
89: ospf
90: sprite-rpc
91: larp
92: mtp
93: ax.25
94: ipip
95: micp
96: scc-sp
97: etherip
98: encap
100: gmtp
101: ifmp
102: pnni
103: pim
104: aris
105: scps
106: qnx
107: a/n
108: ipcomp
109: snp
110: compaq-peer
111: ipx-in-ip
112: vrrp
113: pgm
115: l2tp
116: ddx
117: iatp
118: stp
119: srp
120: uti
121: smp
122: sm
123: ptp
124: isis
125: fire
126: crtp
127: crudp
128: sscopmce
129: iplt
130: sps
131: pipe
132: sctp
133: fc
134: rsvp-e2e-ignore
135: mobility-header
136: udplite
137: mpls-in-ip
138: manet
139: hip
140: shim6
141: wesp
142: rohc