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php实现websocket实时消息推送* |* { ?+ o$ u0 g+ F/ h
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6 O7 a$ B! L; _; ~4 t, OSocketService.php
* Y. I z$ V7 u) Z! U3 t- <?php$ ~% {! y# d& l9 M( o
- /**
/ G; n3 U6 n. M0 } - * Created by xwx6 Z; Z* D0 h1 ?) g( y& c1 m0 `- N2 m7 j
- * Date: 2017/10/18
$ Z" F1 n, P! ` - * Time: 14:33 h/ S' D5 H I$ O
- */
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- class SocketService
! x: g1 G, K5 P. T4 B' I Y! g+ q - {* D3 a- f' Q+ w' @+ G0 W
- private $address = '0.0.0.0';6 Z" L/ v% f0 x* |6 l
- private $port = 8083;! q0 ^4 ]' s# W! p5 V' X# U/ b5 w
- private $_sockets;1 {* _4 T J7 [7 z D( H4 m
- public function __construct($address = '', $port='')& L$ b$ _) T5 a
- {" S. |7 @, O& X2 w2 V
- if(!empty($address)){1 H3 W! v; [4 \ H/ `2 t$ |
- $this->address = $address;
7 h. h: ?% L4 O! Q" \1 Y& O! Q+ }8 h! |" E - }
! ^" V( e# ~- E" p- N! y# I. L - if(!empty($port)) {0 W+ C# B# G; x) z2 @
- $this->port = $port;* L5 F5 P. F. o5 ^1 z0 \
- }
. x4 M8 H N, F - }6 R* V! A7 z2 I* y; u" r! _5 M+ \
- % Y* p$ @, }$ W2 m" E( i: @
- public function service(){
6 q$ J! | u4 K7 z/ g d, D - //获取tcp协议号码。
C$ Z2 c0 }# m) e F/ Z5 L7 N - $tcp = getprotobyname("tcp");+ Y/ m7 B- t- H) i% \6 o
- $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);/ ]8 n! W) X' i( ^8 i% O( d
- socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1); x9 ?1 `4 j9 d ~9 l! a2 R) M# U! z
- if($sock < 0)( C8 _* W) j E8 n) g7 u% m
- {
: x- M/ ^1 r! |+ b& Z3 }0 a - throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");
1 O: i5 p* ?7 ^7 A! g, Y - }
/ l" M3 t- r/ J0 N( e% R - socket_bind($sock, $this->address, $this->port);5 \. ?8 G0 E. R) B5 c
- socket_listen($sock, $this->port);. A- K4 B( Q& g
- echo "listen on $this->address $this->port ... \n";
q! ^. @/ }# v$ G - $this->_sockets = $sock;
7 @) g4 o. _ B- g! m - }
7 k& G u! u1 C -
: f7 r5 I# q, B; f; K - public function run(){9 E% K# Z, q' N4 x# Z( V$ K* h
- $this->service();8 y4 i& G; d6 H% _% V' s9 \7 _
- $clients[] = $this->_sockets;1 J+ }/ S" ]1 |( v. H
- while (true){
6 q3 \* Q+ y g. V1 T& q( Q( q - $changes = $clients;5 i% q) B/ b, q) {5 |
- $write = NULL;) _" _# ]; a4 H ^2 b( q
- $except = NULL;: L9 m w) h2 l7 [: g* O
- socket_select($changes, $write, $except, NULL);9 o/ ]1 y$ @* L& {0 F3 v* t2 N
- foreach ($changes as $key => $_sock){
9 R1 l5 D: {1 B* I7 ]$ @- n5 D$ \ - if($this->_sockets == $_sock){ //判断是不是新接入的socket0 H1 A; }7 N% v7 e1 y8 R
- if(($newClient = socket_accept($_sock)) === false){5 ^% c' }& ^( z, f) e; S, s
- die('failed to accept socket: '.socket_strerror($_sock)."\n");' f) s7 C# c! Z3 N) {9 M% ~8 ^; I
- }
$ V9 `7 K0 t Z4 ^# ^ - $line = trim(socket_read($newClient, 1024));! \- Q/ U- o f& q
- $this->handshaking($newClient, $line);
" ^, w( Y- l( u3 l/ p6 a - //获取client ip
9 }0 N2 E v: F/ \1 g8 w& ^& B - socket_getpeername ($newClient, $ip);
3 ]8 y \ n, P; v8 q) H, M' n - $clients[$ip] = $newClient;+ Q! `( s. s" j' f
- echo "Client ip:{$ip} \n";% z( Y6 I6 }. w- ^4 P1 Z3 \# |
- echo "Client msg:{$line} \n";
& H2 n& u. \# H& p1 O - } else {6 n6 P+ e1 d) w9 m! J0 o
- socket_recv($_sock, $buffer, 2048, 0);1 q& d/ W% D7 ^9 g( H- i
- $msg = $this->message($buffer);
! O' m2 v6 A3 ^1 {$ p - //在这里业务代码: E- D, D" ]- V* E+ @8 |: O: i7 p
- echo "{$key} clinet msg:",$msg,"\n";
1 ^2 v& L: k, C- L: z8 {3 E - fwrite(STDOUT, 'Please input a argument:');
4 F \. p' n$ M! }+ V F - $response = trim(fgets(STDIN));& \2 z' p1 h0 N8 w4 m# y. ?
- $this->send($_sock, $response);6 g! T1 q, Q: X4 n: Q
- echo "{$key} response to Client:".$response,"\n";
n( ]) ]' r! _# \* L! E - }
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- }
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. o5 O0 G: J, S, ?$ \+ Y - /**
0 i" L& G: c' X - * 握手处理
( g: m8 V2 x% B! e, C - * @param $newClient socket! ~& ?7 R- o4 w1 H5 @" \0 C& M$ p
- * @return int 接收到的信息
$ P/ F- R# T0 l1 T' v2 A' g - */
* a! P4 ^. n% c2 t - public function handshaking($newClient, $line){1 d; X# O! }3 [+ J1 t. q
- . A5 e' Z& f: z+ v- x( l, ?6 n
- $headers = array();# Z2 \7 o( H$ o, V* K2 w B5 X
- $lines = preg_split("/\r\n/", $line);. c% ~; h* R) K" @& w. K. F0 k
- foreach($lines as $line)! {8 g% ]& O6 h0 P# g7 U% a7 |
- {/ w9 x6 c9 |6 Z8 h* F9 j# Z
- $line = chop($line);
# J: v7 s* k) R! k0 x8 [, H - if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))
3 x2 X" s6 ^1 m - {
' t: i, @2 v5 s. s$ ] - $headers[$matches[1]] = $matches[2];
5 \5 F9 e; }' y5 |* [& ? - }
& E- f2 S% s4 r' V9 F2 q/ C9 l - }
3 d, R+ b# L% l2 v P* C - $secKey = $headers['Sec-WebSocket-Key'];
0 f u8 i1 Z* q( h2 O0 b - $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));# v( f9 r2 @: r+ C, y- o9 {3 E* G
- $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" ./ W. j* Z/ m/ s) s" k+ R
- "Upgrade: websocket\r\n" .
4 S) z& W2 [3 \" c - "Connection: Upgrade\r\n" .6 Y( v7 @ z" D/ D0 K5 l
- "WebSocket-Origin: $this->address\r\n" .
' M! S. q5 e$ N; r0 } - "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".' ]" g! l8 \) l
- "Sec-WebSocket-Accept:$secAccept\r\n\r\n";
8 o% m1 K& {9 l& b$ i# ^ - return socket_write($newClient, $upgrade, strlen($upgrade));
5 h7 I4 Y0 H' @. R: y1 [8 [ - }6 Q: x6 y# }% b/ o' c( `
- 6 L* r ?5 ]1 W! Q& R; v
- /**
2 ^/ X) r8 `* w" g4 @- l - * 解析接收数据
6 C0 h. |) v2 u) [5 A/ Y2 O; t - * @param $buffer
; V8 `( W6 |) B1 j! ], D6 d - * @return null|string
; G' ^. _( B( T" ]3 g: n. x+ K - */
; @* ?7 F6 P q% p0 Z$ V* G - public function message($buffer){6 U; h9 J1 Y/ n
- $len = $masks = $data = $decoded = null;
, E; _, D- l7 \" _' s: o2 q - $len = ord($buffer[1]) & 127; m. p# [. R8 K6 J! o. ]
- if ($len === 126) {- M6 `7 ~9 h t7 p& i4 X B
- $masks = substr($buffer, 4, 4);+ z) X9 B. M+ Z2 r8 T+ e
- $data = substr($buffer, 8);
0 K" F: Q, o7 L! ~ - } else if ($len === 127) {- z0 o/ R$ B/ I# n
- $masks = substr($buffer, 10, 4);, U( F3 s4 y: \" ]# b
- $data = substr($buffer, 14);
# K$ f5 D( q- P- A. n! v4 E$ s - } else {3 B- a4 z1 `, C3 g
- $masks = substr($buffer, 2, 4);
1 Y$ ?/ q0 ]: M7 b# Y+ t - $data = substr($buffer, 6);
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- for ($index = 0; $index < strlen($data); $index++) {0 N: H4 W9 [# b7 X
- $decoded .= $data[$index] ^ $masks[$index % 4];8 H, a# m; L7 d3 x; E% ~/ u- q; k
- }& t- ?0 j8 V" E' {
- return $decoded;9 P7 g2 O2 i- e' H+ \+ j9 T- v
- }+ m: k+ u0 z% n3 v
-
$ P) o$ a& T! `* r3 L0 ?8 F$ U - /**, F* I o% Q# A: F, \7 O
- * 发送数据
" a4 x2 V S0 D8 R. Z1 ]4 { - * @param $newClinet 新接入的socket
j7 l/ Q- j! K/ p7 f/ i - * @param $msg 要发送的数据2 m( \5 r Y- u3 p# N* X6 f1 `
- * @return int|string) G2 F' H) h$ x, V7 k
- */
( C" s5 b7 ~1 z% y' G - public function send($newClinet, $msg){& b# j, R9 O% O& N" p6 h
- $msg = $this->frame($msg);
: _+ m/ |, o% l# l- L& V - socket_write($newClinet, $msg, strlen($msg));6 _- g( W! \9 ~- X
- }+ Q- Y9 Q* U) D# l3 s
- 8 C5 W1 |* r% [% {& a
- public function frame($s) { x: H; Z( a) ~$ p0 h
- $a = str_split($s, 125);
+ l. r8 {8 z7 A8 C$ Z - if (count($a) == 1) {
5 E$ B3 K$ m0 E& d2 K. O - return "\x81" . chr(strlen($a[0])) . $a[0];4 {' }& q/ q# J$ G/ r3 m
- }
" c6 _( v+ \, r2 `5 ] - $ns = "";9 z3 C/ }" Z( r+ ]7 F0 Q
- foreach ($a as $o) {
! V, t* I# ^1 o6 B - $ns .= "\x81" . chr(strlen($o)) . $o;/ ~' i; ?! |5 o5 v5 s* V
- }/ |( Q1 z* E! A, U0 b
- return $ns;- Z, H; ~( d* j
- }) j& g0 m' }+ v& X: L3 L
- / J$ ~5 f) z6 S7 d9 c; A" [
- /**/ i- o* _# v/ F: n! {+ Y4 t
- * 关闭socket
+ E5 o1 u2 r, }: }( E3 U - */ w' w. I; a8 u E, b
- public function close(){
7 n3 g, n% |0 k2 E, }7 Q4 N - return socket_close($this->_sockets);
* i8 z W1 w8 W; K2 V3 R - }# W0 i3 ?7 A) h! \/ N
- }
" I& ?4 _* K$ y2 V/ [$ a - 3 y! A0 f7 h6 k2 }7 N2 V7 J
- $sock = new SocketService();
5 T* R. p/ d8 S4 a, s# _7 U - $sock->run();
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复制代码 web.html
! S8 \) w- }* H4 i8 [4 K4 Z) s% K$ N- <!doctype html> w1 F" j% K$ ]" C
- <html lang="en">
5 i$ X, i5 s/ x, H - <head>$ B5 }2 ?* G- p/ F3 h
- <meta charset="UTF-8">
- C5 @" Z7 }$ @# Q& E+ a! d/ d - <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">% n. r* H$ |. N# d
- <title>websocket</title>
# G1 ]: I+ U0 @+ K% q# _ - </head>+ I9 A l" i4 ]8 @+ A, _) H
- <body>6 L! K1 q$ Z) U, j( N0 M, A3 P- f
- <input id="text" value="">
/ \ h2 `2 D% i: h2 K9 T/ |* U9 { - <input type="submit" value="send" onclick="start()">9 |& m* a9 E5 k' {, _
- <input type="submit" value="close" onclick="close()">
3 m5 w7 C, [( F1 h6 v* b9 z% s7 ^ - <div id="msg"></div>
8 R# L1 X% I8 K - <script>
+ Q# N" ~7 M# ^6 t x. Q' c - /**0 D) A2 b* w2 W# b0 B; N/ P
- 0:未连接
+ ]& [8 q/ k1 k3 Z - 1:连接成功,可通讯
9 c! |4 ]/ J' c# N - 2:正在关闭
0 @% D/ N" B _& u! ^. s' T, ?' L. @ - 3:连接已关闭或无法打开
+ v4 n* K- m- _6 r: B8 J - */5 U: a% Z: J" g
- , O! d& ~/ s. u
- //创建一个webSocket 实例
, C4 I! B& \) H! p; i - var webSocket = new WebSocket("ws://192.168.31.152:8083");
% E2 s C5 V+ |4 x, s! T - * Q& a% c: j. N' [
-
) u0 C* b" t0 t - webSocket.onerror = function (event){% \* R0 {, W) E/ x6 q j9 f
- onError(event);
$ [4 ^) q$ b+ n9 r6 R - };
5 L, ?7 n- z9 r4 K# |5 N -
2 Y1 G1 d& R1 z2 {9 i `! k5 {9 u - // 打开websocket
" T, x/ z* b5 q8 N2 U, e9 u - webSocket.onopen = function (event){$ T- r( h8 b/ a' ]$ T
- onOpen(event);; c4 q* B4 w6 e. u
- };
8 m9 d+ v" w' \ -
; K H" u* r. d. _6 w9 P - //监听消息
+ S6 d% {3 B0 P - webSocket.onmessage = function (event){- |# C/ q! i) K7 O2 ?) v
- onMessage(event); _5 U! o% {! u( J( }9 v& [
- };1 J: Y2 A& Z+ o7 o9 X' W* \
- 7 \- A1 p( Q" T9 h
-
$ p, r$ f/ m# r4 b$ h4 f - webSocket.onclose = function (event){
# d8 _2 x8 B2 {5 t! @8 A - onClose(event);! J# h% z% _3 Q: c- G
- }2 N4 @4 ^8 ~# e' Z/ G. X4 q2 w
-
; o X" c$ I5 f7 g- e - //关闭监听websocket2 |" P; x* S0 P; x6 t# d
- function onError(event){
3 i: [- |3 x+ y: O5 H - document.getElementById("msg").innerHTML = "<p>close</p>";" v; k* E0 M" E" D- ~! z- L
- console.log("error"+event.data);0 f' S7 V/ u$ U3 @/ x
- };( a. K& o5 G# V. X" K
-
7 W5 `) b1 H" x# n; }' y2 H) L - function onOpen(event){1 Z# _0 k1 Z/ ^# N$ O
- console.log("open:"+sockState());
+ L" z3 v7 N4 U( Q; t: V - document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";
j" z! A* `" T7 x1 U7 n, y - };
1 |: U$ r0 v# f' j" ?8 Z$ ?. S - function onMessage(event){! S( g9 N3 _, v' P9 s3 B
- console.log("onMessage");) m* n4 N- q( ^) e
- document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"
9 s/ G, `1 _* D, q! ?. ~% o% O - };# ?' B8 F9 W0 c; D# P: V
- & `; n3 E- g1 `' x
- function onClose(event){; y. s5 P! c) G% n. ~
- document.getElementById("msg").innerHTML = "<p>close</p>";
" j$ A# M1 n& n% L% q8 j r6 ^& c - console.log("close:"+sockState());/ t4 C# E- P% H( F
- webSocket.close();
% F: ]# V* ?" d9 u8 V3 v; d& n7 X - }
' _5 @& G6 m. X3 @6 e - # c- Y I( W7 M: n1 g
- function sockState(){
( x$ V* v6 r1 x - 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'];/ Z& ]% Q( [1 u, \) F
- return status[webSocket.readyState];7 [% q7 M+ B; j
- }
6 T0 G( F0 w8 C- O0 X -
8 D, Q6 t$ ^8 \: k- h -
' ?8 K4 ~8 Z! ]4 Y4 n& H - , L, p: ~0 O' G, Z
- function start(event){ i% U# l7 a/ c* X3 m2 ]! x0 L
- console.log(webSocket);
' c% ?) _& h0 g - var msg = document.getElementById('text').value;2 M4 s2 w( k) G2 u4 s7 Y& U" M
- document.getElementById('text').value = '';9 @! q- G+ h6 @ F/ }
- console.log("send:"+sockState());
, F; f$ l2 }3 H/ V9 U - console.log("msg="+msg);
% v( b/ O8 P& p - webSocket.send("msg="+msg);' E6 M% D. R( B
- document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
. e- m$ K1 Q8 ?/ o% l5 c - };
7 w! G( c; f4 } ^ -
& L: i! k( j, O6 H) i7 I: y - function close(event){+ [ j! O0 V, [% j8 n1 g
- webSocket.close();% y' {( I j# ~# c U
- }
9 B: L ~% c. f8 ?. P6 e. G - </script>
+ {, v9 r- J! l# x: H% v# Z - </body>, k; h; H8 s2 k0 d; V4 J$ a
- </html>
复制代码
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