getprotobynumber

Description
Syntax
Examples
Links

Description

The getprotobynumber of Network for PHP gets a protocol name associated with a protocol number.

Syntax

getprotobynumber(
    int $protocol
): string|false

Parameters

protocol

The protocol number.

Return

Returns the protocol name as a string, or false on failure.

Examples

1 · protocol

<?

$protocol = 6;

$return = getprotobynumber($protocol);

echo $return;

tcp

2

<?

for($i = 0; $i <= 142; ++$i)
{
    $protocol = $i;

    $return = getprotobynumber($protocol);

    echo "$protocol: $return\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
61: 
62: cftp
63: 
64: sat-expak
65: kryptolan
66: rvd
67: ippc
68: 
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
99: 
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
114: 
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