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php实现websocket实时消息推送
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+ o! y5 f, ^: E7 J: `5 U% A( U5 D1 BSocketService.php
" I+ x, t1 S- J$ f5 P5 w- <?php. M& a1 j; y$ y4 Q; Q2 p( I
- /**
% G1 a* I7 F3 @1 Y - * Created by xwx8 T+ ~. h& C* x* V) r
- * Date: 2017/10/18
- V& ]8 g+ `3 {, [- h) J - * Time: 14:33+ I# N+ o% N7 f9 v8 g
- */
" o, n, P; {- {; z7 `1 L8 D - 6 Y4 @( S2 ? Y A* b
- class SocketService5 `1 p3 r' i: W' ]
- {* f& z& [! k- e0 H* X; H
- private $address = '0.0.0.0';
8 ]* Z3 _. D& y i5 ~ - private $port = 8083;
+ g, w" N; T! L8 _6 _! Y - private $_sockets;7 ]1 k* d# N5 D1 [' p
- public function __construct($address = '', $port='')/ B( q* ^. X* b
- {
. s P( v: ]4 F3 a& k& m9 F - if(!empty($address)){
2 C: ^1 h5 o1 v: V: ?. e - $this->address = $address;/ R9 s# p* \: _2 B
- }7 \ p& J3 Z; \* B7 d
- if(!empty($port)) {& y1 S. d$ t8 J& j* a6 Y
- $this->port = $port;) t5 n5 D" O( b" u! h5 m
- }: B4 A$ A' F6 e2 r/ r( b A/ F2 k
- }
% H0 e B* E; g' } \& l' N8 x -
1 S0 R% }2 i' ]; { - public function service(){
% W, ?0 N2 x: ^/ ]; {3 ]# Y$ W - //获取tcp协议号码。
6 T1 A$ r& S2 F) d; v - $tcp = getprotobyname("tcp");
$ c1 `3 n) s0 [ - $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);
( |& w# d4 A- W( v - socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);
: i8 }. S% [+ m# I - if($sock < 0)
; z9 f* ]3 h4 d' ^# f, E! Q4 w: V - {
8 E/ U% g4 N) ^; M( i3 l4 `. | - throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");4 [( E1 U- \8 S6 _
- }7 H# Z- J. O2 z; r) `
- socket_bind($sock, $this->address, $this->port);6 T3 c8 m4 k" b# O: H6 Z) _' P/ n
- socket_listen($sock, $this->port);/ J0 o' u0 W( [2 F9 x4 a! [0 L5 a e/ F
- echo "listen on $this->address $this->port ... \n";
U- s9 E* V3 y3 Y1 | - $this->_sockets = $sock;
4 V. x- d. a/ G6 ]1 b1 f5 v - }3 _* I& b6 T) v$ }' k1 y
- ; s( x4 |: d7 B8 f" ^
- public function run(){% e* i- g+ J+ `) t5 W
- $this->service();
$ p3 m2 a# p$ F$ l" p1 g0 ^ - $clients[] = $this->_sockets;" C4 P, y. H# X+ A4 z
- while (true){
) J. O5 r/ U! D) @; Z - $changes = $clients;
0 E% M& p ]7 z; d2 [ - $write = NULL;8 X1 e7 R. ~6 y$ p# z
- $except = NULL;
3 n8 h7 y8 C8 _$ ~% m% M& P! P5 G - socket_select($changes, $write, $except, NULL);
! \. L- o& m# a8 k2 K/ c - foreach ($changes as $key => $_sock){
! f& s% B: P7 z/ Q6 c - if($this->_sockets == $_sock){ //判断是不是新接入的socket
$ X. d- w: F& g' F- B7 n - if(($newClient = socket_accept($_sock)) === false){% ^ }7 |/ V7 r& ~# Z
- die('failed to accept socket: '.socket_strerror($_sock)."\n");
; w4 r7 T5 ], a9 J2 F4 ~ - }# b# M! W1 b) L8 I9 z! l8 N y
- $line = trim(socket_read($newClient, 1024));- L7 `" S- ^2 d3 @) l1 C+ i( k/ Z
- $this->handshaking($newClient, $line);7 `- s6 O& O9 K. ~
- //获取client ip5 z: p! @* b, B( `( Q0 L
- socket_getpeername ($newClient, $ip);
8 t0 s5 O5 k+ b( P4 L7 t+ I2 g% O+ { - $clients[$ip] = $newClient;
' q" D7 u7 C, Q- G7 [/ H V: ^ - echo "Client ip:{$ip} \n";
! X2 v+ `/ w. G, \5 j. C$ p+ ? - echo "Client msg:{$line} \n";
9 S/ n. S5 s/ Z9 _' x( C - } else {3 j1 U" F, e! Z" S1 C. _
- socket_recv($_sock, $buffer, 2048, 0);
' U% A- E3 x. m' w) a2 ]* d - $msg = $this->message($buffer);. V, U4 z9 r8 y
- //在这里业务代码, s* {. g" n# O7 l! N% }- h9 s
- echo "{$key} clinet msg:",$msg,"\n";
o, c) f9 `( O' h# E: w, ^$ h - fwrite(STDOUT, 'Please input a argument:');. ?0 c& h$ K9 t$ k
- $response = trim(fgets(STDIN));0 t( R. z! J7 L0 @+ L' r) ]' T
- $this->send($_sock, $response);; J# |& I( N+ _) _3 P3 ]3 h# a
- echo "{$key} response to Client:".$response,"\n";) o8 ]( E6 ~6 M' b
- }
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- /**! j2 E6 b+ D0 I
- * 握手处理
/ V4 }$ T/ d( L6 }& ^# b' Y0 A - * @param $newClient socket7 g# e% y& l" P
- * @return int 接收到的信息% N7 ^% q3 p3 R/ a3 Q4 M
- */
, ^/ f. {: _* D N9 i1 k$ w3 o - public function handshaking($newClient, $line){
& f) ^- v5 \( I6 K -
. N2 w# t; T# R( | - $headers = array();: _2 |- ]. x3 d" g4 R7 K: {3 J
- $lines = preg_split("/\r\n/", $line);
5 J; l4 P0 O' m" U! g5 g - foreach($lines as $line). ?! n( C. x% A" @/ @
- {% \2 B2 j9 Z7 L, K* D! k
- $line = chop($line);
( M) ~; _/ V1 b: D - if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))9 z/ z+ D* ?) o: Z) t
- {& p' }+ v) u) Y9 \
- $headers[$matches[1]] = $matches[2];8 V3 D3 [: K& E1 i% x" b+ M2 E
- }
6 u e# F) n: h0 z" o9 U% N - }
" O" R% W$ e: S$ ? - $secKey = $headers['Sec-WebSocket-Key'];* F r8 B7 l; e3 @9 |; I; P
- $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
5 A+ Y) N& [5 n# b; ^! a+ r - $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .
0 b, ?$ [2 Z! u( X8 C: V - "Upgrade: websocket\r\n" .
/ W* n4 R) r$ Z; D6 k& n8 | - "Connection: Upgrade\r\n" ., F/ {8 ~% s6 W9 B4 {% D
- "WebSocket-Origin: $this->address\r\n" .
6 s2 K8 q n- k! N8 G. X* K - "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".
( o6 \$ t9 ~* \% I0 v5 E; Q - "Sec-WebSocket-Accept:$secAccept\r\n\r\n";
' I( x: }. T% C# W, z; @8 e - return socket_write($newClient, $upgrade, strlen($upgrade));! w. O/ P+ A- g9 t0 b' m
- }) z6 }" `' |/ Y
-
X6 U5 A2 k3 P - /**
: y1 W. g/ L+ Z$ M. h8 V V - * 解析接收数据
9 m- }! a i: G& s - * @param $buffer
; j$ U/ o, X0 w* G8 C6 ^ - * @return null|string
- C0 A- ], e3 q" } - */, I& D D" {* s6 ^ {. J
- public function message($buffer){
- Y6 E! }3 u! _0 Q# X7 ^ - $len = $masks = $data = $decoded = null;. a. W: S) _ t5 l5 ?4 v0 D
- $len = ord($buffer[1]) & 127;
6 |3 M) i' C9 R! _0 Q% F7 L - if ($len === 126) {
0 ]" }+ Y) f+ y; B: W- y; D - $masks = substr($buffer, 4, 4);% A! q$ n9 z; n; \" k+ M
- $data = substr($buffer, 8);% V+ h! L7 Z) W/ w Z" {
- } else if ($len === 127) {7 e$ f( h1 S9 L0 _7 N8 }
- $masks = substr($buffer, 10, 4);
C- u- ?& G% h F; o - $data = substr($buffer, 14);
+ g+ V1 h/ x6 K$ x9 y - } else {
3 Z# U0 a* l, ~$ |/ V - $masks = substr($buffer, 2, 4); ]/ A# I; N; z
- $data = substr($buffer, 6);$ n) p6 Z0 c2 _6 P5 E
- }1 m( B& u* a& K0 a! e; C
- for ($index = 0; $index < strlen($data); $index++) {
& ~: G1 Z$ {& R3 I - $decoded .= $data[$index] ^ $masks[$index % 4];8 I: Q8 e- @9 F- E& B7 M
- }
4 j6 W! } }; h. K8 |& g2 e5 ` - return $decoded;4 f2 y. e: @. x4 D
- }6 x# ?( k# K5 W, Q, \, d* ^! c
-
" N( S( b; P; t2 \ - /**0 n [ X. R* Y H: B( ]- d+ |) A
- * 发送数据
' r6 Z# F2 x$ \, ]- E2 | - * @param $newClinet 新接入的socket
# | T* K# |3 ~" Q4 C1 h2 z - * @param $msg 要发送的数据9 ~" C; o2 P$ u
- * @return int|string' ^3 \1 ^0 l" z9 n0 \
- */5 U+ _2 g7 |5 y, m
- public function send($newClinet, $msg){
7 |2 C9 w2 k3 i( u( t - $msg = $this->frame($msg);
/ K1 y2 `( U! k" Q0 H - socket_write($newClinet, $msg, strlen($msg));
4 ?! B5 X/ E, y+ X. u' W- i, ~ - }% |3 G' o7 p3 S: g; O
-
: c9 f' G$ o% i - public function frame($s) {
4 {) Y- Q+ l% J, v$ D2 p; g, C - $a = str_split($s, 125);" g- x! n/ L5 H# v7 a
- if (count($a) == 1) {
7 \9 y; p8 o2 Y4 R - return "\x81" . chr(strlen($a[0])) . $a[0];
* R* E }; f1 I. ?4 Z - }
) E$ u5 M0 w5 L% N% o$ j, W1 Y0 U - $ns = "";9 X. y3 t$ r* H5 G- d+ P- T
- foreach ($a as $o) {
: q5 q5 f- S& Y* r4 M - $ns .= "\x81" . chr(strlen($o)) . $o;, U) X& u4 s+ G# v: P% x
- }
( R0 |7 Z0 L3 h - return $ns;$ F' ]) ~: W8 @- `1 x" o2 h
- }$ L6 l7 I" z$ {5 v
-
! p! f3 Z! C, T7 e T0 g4 Y: V2 @0 V - /**. o6 w' @& e' d# Q
- * 关闭socket4 p% q8 t& R7 A0 ]$ J" v- c
- */
+ Z+ K/ B. l2 K2 k1 s1 {% ~ - public function close(){
& o4 G! r7 l$ ]9 b- t - return socket_close($this->_sockets);0 M; x/ Z7 s* Q3 O: b- y0 V" R
- }
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- 6 z6 I ^' ]& F1 O
- $sock = new SocketService();$ a0 B; u3 [) W+ h! O9 P- S9 m
- $sock->run();9 [, D' F' m$ d; J0 @) p
- 9 n( q2 T- n2 J9 w( I
复制代码 web.html I- J; ~0 x; E, H( r
- <!doctype html>" Z' Z% Y/ B# M& H
- <html lang="en">
* Y' _% ]& m, K1 S* E' L0 H - <head>
% Z0 Y* V4 {; C: Y) @ - <meta charset="UTF-8">
! } t6 w& n5 a1 V( o8 a - <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no"># X8 y" h+ u3 y
- <title>websocket</title>8 ]. s7 f& i: y4 s
- </head>
" w! z+ h, Y/ e6 s" T! T6 b - <body>7 W5 Z1 U5 N5 n4 Q
- <input id="text" value="">! l# m: a! i l5 J0 z
- <input type="submit" value="send" onclick="start()">! I" [6 a+ L* |! D' g: t7 ^# B8 E; |
- <input type="submit" value="close" onclick="close()">
$ L _8 _3 t" _! K- I, C( z6 F - <div id="msg"></div>
: T( G9 m$ O7 }1 y. O - <script>* |# C m" O+ ?$ \! T
- /**
+ g9 o* M/ H9 S% c! O! t) r - 0:未连接3 V' l0 Y1 U) m! T
- 1:连接成功,可通讯
$ L0 Z. R) N0 P: n7 ^ - 2:正在关闭
3 Y6 V6 g% j/ A - 3:连接已关闭或无法打开# V) S0 h, p, F- a: o- p3 C0 E+ g
- */
$ R7 k" c* b# @8 l5 o' N6 [ - : a c. ` i1 F" ?( D
- //创建一个webSocket 实例
" ?+ {4 F. X- m. p& p - var webSocket = new WebSocket("ws://192.168.31.152:8083");1 S) U# W* O9 h% R4 o* ?: j g
- - J; O" t. q( b- |. L K" p, G$ _9 i
-
, w$ \4 J; D% D' B0 V - webSocket.onerror = function (event){
" O! f4 ?- i+ O; I/ D) ]3 N6 u - onError(event);
) W7 g# y6 a$ f$ O' {0 b8 c - };( F7 A! W e9 D- k6 _' P4 j
- ' f, I( g% Y s8 x w1 L& \
- // 打开websocket
8 r6 \4 _$ Y: C5 p% O+ W% r) [ - webSocket.onopen = function (event){
7 v/ i. A$ z' o( \: f9 \" A# } - onOpen(event);& d, p" o. U/ U! k- @
- };
r2 u( t7 ]. m. ~$ W; x8 k - 2 A9 `& X5 y3 R! ]- m
- //监听消息
8 Y: t; @2 d. G/ ] - webSocket.onmessage = function (event){
: @+ y* |+ p: V0 j1 M! @2 ] - onMessage(event);
) C/ J6 X$ }8 } - };5 a5 [) p/ x9 x) h( O. \
-
}( h, c7 [9 o- v. X8 C -
; _9 X1 a- X+ } C* u } - webSocket.onclose = function (event){
) p6 r8 q: S& b# C9 h3 b3 \ - onClose(event);) E" J7 y- _9 C8 |2 O: N
- }
+ R, Z0 T2 `3 g% [1 I& Q - ) v1 f4 X. r1 [7 z" I
- //关闭监听websocket6 J. ~. X# B3 r) o5 w1 i- Y
- function onError(event){
9 E! o$ U" O% P6 S( z& O6 u: B - document.getElementById("msg").innerHTML = "<p>close</p>";' l% `8 J7 w3 c( s& E! X" _4 M
- console.log("error"+event.data);
. S' S3 [/ L ]5 n( r# _; P6 U D - };! U, x& F6 Y- C+ @5 ]9 g1 {
- ( n: v9 J# F. W- H% ]9 _) y
- function onOpen(event){
+ L6 a0 g4 c! w/ \6 }3 o! ]1 s - console.log("open:"+sockState());+ Y% g; E6 E7 K% I
- document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";. I+ k' \# h; D( P8 E% E
- };
* I; q$ P: H! `+ M* Q - function onMessage(event){4 z: l3 M" V9 x
- console.log("onMessage");; _" j4 b6 W- A" T( T U: ?
- document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>". V' K# z$ N* L. |- Q4 Q6 M, V
- };5 N& n1 b' y5 T" v
-
! d9 Z% K4 M* t u/ K - function onClose(event){2 A2 E/ d* @( B4 `
- document.getElementById("msg").innerHTML = "<p>close</p>";
0 C( P( B, K6 |2 {! B - console.log("close:"+sockState());
7 T7 F. ^- W5 ]! w8 l - webSocket.close();
" j+ y' S* S3 z3 ^ - }: ~5 @6 n' p! s/ x+ v
- ; V2 M0 w3 _/ b, D4 v8 D
- function sockState(){
. \" C: t! ^+ g5 _ - 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'];
3 f; b6 b/ ]' Q% `- g - return status[webSocket.readyState];5 b: v1 S" y! R# Z$ y- K. g
- }9 Y: Q* t* \: d t2 ]
-
2 K* K: a9 X! r$ z -
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- function start(event){" J- [& I8 M6 p" S" X
- console.log(webSocket);& F$ o; ?7 q0 x
- var msg = document.getElementById('text').value;0 D& F8 d) K C7 w
- document.getElementById('text').value = '';
, ]9 r( N/ t' r+ j1 D - console.log("send:"+sockState());
( S4 [) }8 [) X. P9 D1 Q7 P - console.log("msg="+msg);
. {4 m6 N* L# p4 Z( j# Q z' ^; j/ Q - webSocket.send("msg="+msg);
& y" s$ U0 M7 {( [! r! B - document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
{; n3 S" \+ N0 g+ g3 Q - };; |* y+ S! Q6 [% L) g! h
- ' K! M$ G* g0 V" H; i8 G& e; n
- function close(event){
1 a8 G i) `9 q `% P2 Q! { - webSocket.close();. w$ w f0 t c% ?7 k
- }
& H8 ?: Z. m' y1 e) d% W - </script>
N2 B v% n$ h8 M A& Y. W ~* h - </body>9 S% {& l. V; S5 D9 O& W5 {/ w% c
- </html>
复制代码
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