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php实现websocket实时消息推送1 P# M) |+ i7 N2 H T8 M5 G. [, H( M
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SocketService.php
3 {- K: y5 H$ R5 u9 S- <?php
7 o: B# @8 |# p. c) a/ X - /**
4 M. I$ v0 I$ z/ C6 O8 N J& g9 b - * Created by xwx
1 @ A6 y+ t- T3 w g. u. h - * Date: 2017/10/18
, Q3 Y! N- j4 `3 ?( Q - * Time: 14:33
- O! `0 E. o+ k, t, W - */
4 M8 L- b, U: s - j3 C$ n+ Y, m# A
- class SocketService
3 v" D2 W3 Z" O! s - {
, P$ u# @) ^1 _* I8 v3 H - private $address = '0.0.0.0';$ M6 M5 N2 K1 I$ p$ q& W
- private $port = 8083;8 B8 }/ B4 |- `9 m6 m2 P1 O
- private $_sockets;
0 m* T7 A4 }/ j: L, k - public function __construct($address = '', $port=''), a% {. _% \1 K2 B, d3 s9 a* Z0 l4 v
- {
( Y) d) U7 f6 L9 l" Y7 y/ R, v - if(!empty($address)){$ Z( a" K" ?! G8 }: I
- $this->address = $address;2 ^- |- z# a: U
- }! P3 D& O; X% E( X C
- if(!empty($port)) {
5 i4 B, r# ^' B2 e- B - $this->port = $port;1 |' U1 }& T9 f2 i1 c5 u
- }: P6 Q- w6 A$ g, u T
- }
' I' B# [ i1 l" b2 a - ' J; ^% j! t$ H5 i" w. }
- public function service(){. h" V9 J1 G, l* G/ r
- //获取tcp协议号码。( ?% L1 G9 F8 F5 r1 e) [
- $tcp = getprotobyname("tcp");
! Y2 e) z. e0 @8 E% V6 l: X - $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);+ D- @( k Q" X- A5 K
- socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);+ K$ L# R! g. y" ^0 P
- if($sock < 0) h1 I7 L$ S9 t* e0 z
- {
6 M' z4 B5 h2 r% v# b - throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");
9 h# p" f' {4 q0 b - }
. Z0 N ]) r' Z* t( z( i- A - socket_bind($sock, $this->address, $this->port);3 ^: v/ ~6 L1 C
- socket_listen($sock, $this->port);' e# c& [. e4 p
- echo "listen on $this->address $this->port ... \n";
( c. M5 U/ w& R - $this->_sockets = $sock;
5 h% ~& @+ _) Y8 n - }
2 m, N. u, t3 T& D -
% R: ]2 c3 \9 u2 u - public function run(){
) P4 k1 L" U# z/ o% i( M - $this->service();* O a, w8 M9 X- {
- $clients[] = $this->_sockets;
' V5 S) C# T% _5 u" \ - while (true){
# I$ p( A1 U& q, m9 n - $changes = $clients;6 J1 h# j* R ?( }' l, y
- $write = NULL;
; h9 {3 E# y4 E2 C - $except = NULL;) m) i! H) c7 {
- socket_select($changes, $write, $except, NULL);9 \! ?5 v; O2 o* V4 H
- foreach ($changes as $key => $_sock){
1 r/ @+ D, K( H/ ] - if($this->_sockets == $_sock){ //判断是不是新接入的socket3 Q5 V( J$ R/ ~
- if(($newClient = socket_accept($_sock)) === false){
" ?2 R+ Z; a. L0 r. ^ - die('failed to accept socket: '.socket_strerror($_sock)."\n");
* E# O# P$ H( ^ - }
}- k6 f" A' M- r* E" m - $line = trim(socket_read($newClient, 1024));, O6 p5 E0 Z. W4 M
- $this->handshaking($newClient, $line);
4 X) L) d) ^& g! g% {6 ~ P - //获取client ip+ D4 T3 T# l8 l- d
- socket_getpeername ($newClient, $ip);
7 z9 @4 m& j6 B% ^1 @ - $clients[$ip] = $newClient;7 l1 B* Q! i# }/ Q& a
- echo "Client ip:{$ip} \n";% A. e2 Q' C" z/ [7 y- g
- echo "Client msg:{$line} \n";
- ~0 w- q" ~0 W) z n0 u, K. G - } else {7 O! d$ L0 C7 ~9 H! d9 l
- socket_recv($_sock, $buffer, 2048, 0);$ ~) x9 W/ p( R. a- k2 ~2 R
- $msg = $this->message($buffer);
) l v" h9 O* Y$ [5 M2 Z - //在这里业务代码. R5 U$ O, \+ ~4 F2 x% C5 A
- echo "{$key} clinet msg:",$msg,"\n";
6 i& v# F2 Y% }% H - fwrite(STDOUT, 'Please input a argument:');
" z% D/ }4 a. e3 ?6 J: k0 T5 }3 n0 b - $response = trim(fgets(STDIN));: B8 U/ L) K7 ^# d4 j
- $this->send($_sock, $response);2 W% V, J. q6 r4 b5 q
- echo "{$key} response to Client:".$response,"\n";% l9 M! p- [) X
- }% i4 U7 I* h3 j4 {6 A- p
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- }
1 d: V* F! ~. g: n - 4 c5 q% n/ O! u' {5 k0 H6 [4 L2 W
- /**
3 Z6 _8 X' Z- @ - * 握手处理; ^6 S6 U! j! i
- * @param $newClient socket
- [+ R/ r! @, w/ r1 r$ B - * @return int 接收到的信息/ f2 v8 P# p& p7 |
- */5 r5 C% a- }! M# Z* O$ d
- public function handshaking($newClient, $line){
9 s }' [( j! r( o - Q* e* k; z. Y
- $headers = array();" S- i" Y: c7 r C i* r
- $lines = preg_split("/\r\n/", $line);
7 e% N3 u% j) ^ O& u% \ - foreach($lines as $line)1 T4 ]- {$ L# s' J/ z! w' c8 ?
- {2 G9 d3 Q; N% S0 m3 {; E7 e0 F
- $line = chop($line);1 v. c8 K, w% B9 Y' Y
- if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))4 ^7 c, d4 {# D+ q
- {& t3 _; G1 V) g4 K0 @9 P
- $headers[$matches[1]] = $matches[2];
2 m& r$ @* L# ? - }; K9 ~+ D s& M8 F
- }0 l: w4 B/ S. S1 j* d# r' u- T( d
- $secKey = $headers['Sec-WebSocket-Key'];5 C8 Z5 v! B3 e- _* j7 {8 l
- $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
$ r) M* @4 U8 O9 m2 U - $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .
( v' l3 S0 e# L3 b - "Upgrade: websocket\r\n" .
9 c. G# S, l- J* n- Y- U - "Connection: Upgrade\r\n" .
* O7 b4 K- D+ p) n4 Z& V - "WebSocket-Origin: $this->address\r\n" .
9 t' t; b, O8 u - "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".
: e/ j! e; R% g3 B- N1 ], k - "Sec-WebSocket-Accept:$secAccept\r\n\r\n";
1 o' q2 V& W, P. M8 z - return socket_write($newClient, $upgrade, strlen($upgrade));
, `& T& ^' q% q4 U - }
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- /**
% m, m& [2 \! \! B' C5 k7 |: r - * 解析接收数据
6 @& e% P& L( c2 q3 X J - * @param $buffer
' H% ]0 r# \% z, n4 n: E9 W$ e - * @return null|string% }& m. T- p: ?6 |% s& _
- */
; Z- Y3 F2 K) w( D/ U: ]! _) N3 S1 } - public function message($buffer){+ d$ G! R0 K8 b& ~
- $len = $masks = $data = $decoded = null;* Q& d- |1 v" {- S; P( H7 l9 F
- $len = ord($buffer[1]) & 127;" _4 V, L. i& l$ x* ~3 s
- if ($len === 126) {, P! S: B% F2 Z7 R* `5 ~
- $masks = substr($buffer, 4, 4);1 B( u9 S: i0 D) ]
- $data = substr($buffer, 8);# _3 s$ X% M2 p0 S X" c
- } else if ($len === 127) {
5 J) N# \2 y+ U, Y" A - $masks = substr($buffer, 10, 4);
4 E/ Y. \8 D: W: S - $data = substr($buffer, 14);
5 B7 i& ~4 t. t @ - } else {
' S9 h1 b$ k( q! ]& v# d9 a - $masks = substr($buffer, 2, 4);* ^ \' e, l( Y* S0 m. C+ \/ V0 m
- $data = substr($buffer, 6);
# m0 L& u& Z i( G7 a0 v1 ] - }
7 R- w$ X/ D) `/ Q: O) Z - for ($index = 0; $index < strlen($data); $index++) {
0 H! {* C, f/ @+ T$ z - $decoded .= $data[$index] ^ $masks[$index % 4];
+ [# k6 V3 }$ d6 @6 x% S- z - }
0 ^( r% R. @* r4 B7 m" q5 c" n9 p - return $decoded;
- A% i* {. y2 C7 C( L5 l* c - }) @0 r! Z' b1 j6 @
- $ m' X* u: b5 L2 J0 A1 p: N
- /**
6 b; R1 F: b7 h7 m9 S7 e; P - * 发送数据
$ N! y2 D7 K2 H8 P - * @param $newClinet 新接入的socket
, u9 E7 K9 Q$ X5 ?: t4 W0 J+ }7 j - * @param $msg 要发送的数据
8 _& `/ C2 F; W. w - * @return int|string
0 r) X7 i+ W- Y4 I5 C - */6 f, M4 \9 e$ u5 ?
- public function send($newClinet, $msg){$ t% @8 O4 k+ T% E+ }
- $msg = $this->frame($msg);
+ e5 o: }. q9 `& g/ M( \7 X - socket_write($newClinet, $msg, strlen($msg));; L6 J* m+ V7 E) f" `- t* i, o
- }
1 s2 ~4 s8 B/ Z# ?' o -
& {2 V) \/ e c1 Z' t/ u3 E, w - public function frame($s) {* O/ ^3 V E: t8 v: R
- $a = str_split($s, 125);
9 Y8 Y, K4 C% ~: J - if (count($a) == 1) {
# H1 x. F6 ]) M% q4 s$ ]- z - return "\x81" . chr(strlen($a[0])) . $a[0];3 k" N$ Y" V0 r2 o
- }% g }& s! |+ _& u
- $ns = "";
2 h( ~% v2 e. T, r - foreach ($a as $o) {$ V- |8 y. a% e9 }2 u) G4 t
- $ns .= "\x81" . chr(strlen($o)) . $o;
7 W3 @1 o3 d+ [! C - }
7 b6 S4 g7 @. {) e - return $ns;
/ B4 a" u- i T' R - }
# a5 E/ S7 ]+ P' S8 q2 O3 A* E - 1 T% C& w9 [& C ]' S8 h$ F* a
- /**
- k8 }1 h6 Z) z5 M1 {" M - * 关闭socket
9 Q* q" @9 I' c5 q$ V$ g - */
\+ U. v# n9 C$ ^0 F - public function close(){: H. c& P# c( u) B# K5 z
- return socket_close($this->_sockets);: c. g* U$ x) y. J5 r+ b' S* J
- }
$ _" S$ w, h+ u7 d - }
0 I+ X% B4 F/ ~5 ?. @; \5 I& | - + f: d2 _4 y9 R2 S/ X& M3 V
- $sock = new SocketService();3 X% k" g' _& }5 N4 ?) B
- $sock->run();
% J" |4 z% b8 {( p* ]
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复制代码 web.html
. `9 I0 `) Y4 \- <!doctype html>2 V4 `7 u1 T/ f! K
- <html lang="en">- E( @: J2 Z: y P8 \& `
- <head>3 X/ S$ d3 J9 @. L4 f9 z& e' e: _8 i v
- <meta charset="UTF-8">
! B( z6 }+ ?- j r# U - <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">
5 [4 C5 f! M: W3 k' {3 t$ A - <title>websocket</title>
/ j* }: t6 d( n- C U: O - </head>5 _- B+ E) N5 Q, L1 { R0 t
- <body>
: T+ X8 L7 G& C# |# a% r; @- I - <input id="text" value="">, a# M. z1 I' [7 V
- <input type="submit" value="send" onclick="start()">! V8 g! V4 p7 S y$ p
- <input type="submit" value="close" onclick="close()">0 V" y6 o( [# z. i! i
- <div id="msg"></div>
! D8 ~0 |0 ?/ ~; B - <script>$ g7 N* k& W" Y2 Q
- /**
4 N" e3 V8 @ A: J6 _ - 0:未连接
7 n* ]: m# w9 I2 P& T - 1:连接成功,可通讯
/ `5 O1 ~# l) g - 2:正在关闭
8 R% e4 R6 W$ R% r X( t( X9 l B - 3:连接已关闭或无法打开! I3 b, H1 p; s* s- K
- */5 s* ^, H. v) x9 J) Z3 @
- 2 q9 a6 u* ]1 @! u7 {. o
- //创建一个webSocket 实例9 m' u" t1 x# V( d
- var webSocket = new WebSocket("ws://192.168.31.152:8083");
' V0 X4 z: F& {3 e Q- z -
# H( u: l. U+ y- l y3 F -
& @6 | U+ W3 @2 _0 k% U0 K - webSocket.onerror = function (event){4 u- b- x2 `2 w. L# K
- onError(event);7 `8 F: U9 d# [' g6 ?
- };- S( c; V; q* k
-
8 p! x; J' \8 m6 e+ i - // 打开websocket
7 N" L' _) m) e3 {8 L - webSocket.onopen = function (event){
+ T8 K- B/ d; D" o- A9 T - onOpen(event);4 ?. A- r2 S/ O" G
- };& N+ ~# E4 \3 z3 \" P
- R0 f5 Q* M6 X" w7 |9 m& M
- //监听消息$ ^! s1 }, K8 B' J6 Q# ?. ~
- webSocket.onmessage = function (event){
+ T5 b' A& D% O2 W& _! g, v - onMessage(event);
( U; w/ Q( ?7 Y9 F# @0 t5 C' M: D - };- E1 E& ~, J, [: I/ g' F
- 3 Q' ] q/ i( @$ j* G# n
-
6 c" w% e3 G( u! C - webSocket.onclose = function (event){
, e. Q3 u$ Q( z% o - onClose(event);
+ U, c3 Q; l% `; i3 r* j* F - }
+ z# n: F2 S7 [2 Y -
* h2 O5 X" y% U J2 ^# r+ b& B - //关闭监听websocket+ a$ U# Z& T& }7 \
- function onError(event){
* P) V# o5 T1 u. ~: G - document.getElementById("msg").innerHTML = "<p>close</p>";. ^2 \& ?3 j) S
- console.log("error"+event.data);
" o: k% O. V' i$ \. } - };8 `6 i# X% j* w" M M3 I4 _6 S
- 6 J/ {$ x8 W- U6 z* }1 Y P
- function onOpen(event){
' y, \% R* S) w- {- k4 |) L - console.log("open:"+sockState());0 u( ^ G+ \4 q4 J. c
- document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";
/ \+ O: x: Q/ K7 m* ~ - };
~8 p) U0 U3 q7 M4 g* K - function onMessage(event){
) ?7 h/ z! e0 O G0 B. t6 T - console.log("onMessage");
j: I# ~) i; T2 c& [ - document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"* a- o+ b/ j' Y0 m l0 U0 M+ ~
- };4 p/ t5 U& b4 r$ M
- 8 c) C" Z+ E9 h
- function onClose(event){9 k% N% \- v6 Z* _% S* G
- document.getElementById("msg").innerHTML = "<p>close</p>";/ @! f9 {3 ~5 L, I
- console.log("close:"+sockState());3 D4 i- `5 w/ j* l" W: [1 e
- webSocket.close();7 {! j3 t1 V" r
- }6 |" A! L1 |# U9 X' D" ~* p& J
-
% g$ _4 t8 F$ J( c - function sockState(){
' U; ]5 r4 e. w. Z8 |' g( c - var status = ['未连接','连接成功,可通讯','正在关闭','连接已关闭或无法打开'];
/ G- @8 L: y" k/ L5 J; e; }# H - return status[webSocket.readyState];
/ B- A8 l s- ]# c- x% Y - }! E4 R, `4 T E
- 7 B1 B, B3 N7 v5 G& @5 e6 Q
- 0 D1 q, l8 G4 E
- 0 W" ~# D3 U7 p$ t% j3 X+ m
- function start(event){
4 Z) w& I$ o1 A% x, f7 S - console.log(webSocket);" B2 g( t; F4 Y( T
- var msg = document.getElementById('text').value;4 ^$ l w( T, U/ u& p( N& R$ r
- document.getElementById('text').value = '';8 }9 _0 ? e$ x6 X0 O( W6 I
- console.log("send:"+sockState());( S+ S$ ~: d \& D
- console.log("msg="+msg);
: J6 \; z6 @& u' s% r* w - webSocket.send("msg="+msg);/ }( {- Y q P, k- `$ ]4 ]
- document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"0 z* _( y/ s* K7 e$ A& _% B2 h9 D5 w4 t
- };
; C! i2 E4 n- S8 h -
1 z7 l& ]5 `! `9 t: v$ \; E - function close(event){
3 J, L* B0 T: n# K- L - webSocket.close();
' S: d5 f9 t1 n4 c" O" { - }
% e4 }, t R0 e+ Q1 b- X: i2 l - </script>
: I; c& I2 T8 y - </body>
& c9 I" u% b, z9 x/ i. ?; r - </html>
复制代码
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