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php实现websocket实时消息推送& `) p& Y& \1 f& I( k; {, g4 N$ ?# t! F
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8 d" a& w$ H Y, S( ^5 }( F& nSocketService.php
+ Q$ r. k. D7 y- <?php
* l$ s5 k3 j0 f& c - /**# B) I6 X6 e/ z8 I
- * Created by xwx( Z. \. j$ j4 }2 y
- * Date: 2017/10/18
% V( V) y6 L5 _$ B1 I - * Time: 14:335 `% C2 `! G2 W( u
- */" s: k% i# d7 H, k y i0 Z
- . y P5 A! }& Q" w! z
- class SocketService) ^$ O4 Y6 j* M9 @
- {& {+ i4 {% W% H' I$ _# b+ R
- private $address = '0.0.0.0';- t& W' P8 x# J, e6 ~) U
- private $port = 8083;
3 F0 ?5 }+ M7 _) P: O2 u3 q! F% e - private $_sockets;
% R9 `. ^* {' A; ^% Z+ U - public function __construct($address = '', $port='')
4 R: V4 w. m1 X2 b - {, s6 v+ Q7 r: R* _9 g
- if(!empty($address)){9 J( _0 a, l" V7 z# z, V0 X
- $this->address = $address;2 R6 V- T3 j; n) {1 |
- }0 N% K& c: H- Z3 A5 u8 p/ |: G+ @2 H
- if(!empty($port)) {
. O) N3 i% \0 `% }# V; t y, P - $this->port = $port;- W; D4 Z: }, `" U( P7 r
- }9 @. U$ {1 O& d0 Q) |% q) F7 ~
- }) i# [1 w6 u* p% |! N) s1 Q% l
-
5 l! ~% O- ~+ x6 y4 b1 D - public function service(){/ s8 r- ~6 i ~5 s
- //获取tcp协议号码。
* K! L9 k l1 @ - $tcp = getprotobyname("tcp");
8 n7 d l( [7 l4 ]) R - $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);& H }6 U9 q" ?4 l, ?
- socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);% d) L% ~* I5 W$ s
- if($sock < 0)
5 v( L R/ t. I - {' Z+ c8 w0 k) c" j
- throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");
# o( V {* G$ {3 C - }9 K( Q1 t8 t* h9 S( e
- socket_bind($sock, $this->address, $this->port);' F7 T0 m( ]8 ^: p( x
- socket_listen($sock, $this->port);
6 r1 | L: V+ K, R' {+ G! I - echo "listen on $this->address $this->port ... \n";
9 s2 ?) P _$ a0 J5 \" n/ Z7 X - $this->_sockets = $sock;
( \) ]5 k6 O* U+ [5 k - }# f. U# U: R, r6 t
-
! R- q/ l1 Z) G! q- E# I& [" ^! _ - public function run(){$ m7 W1 j6 ? c3 @# r$ A
- $this->service();
+ P2 `+ y) u! N# g: Q/ R& O7 o, P - $clients[] = $this->_sockets;
& x+ a0 ?) y" v+ B; q" a! l6 A - while (true){4 U) y0 D b5 R
- $changes = $clients;# q e- m9 ^$ T; Y. R" F
- $write = NULL;8 Y; H* \* j$ h# Y6 W
- $except = NULL;
. X0 P' V) @+ F: v' R5 P - socket_select($changes, $write, $except, NULL);
1 l0 l- j# W- f+ l( T) A1 Z" W. k - foreach ($changes as $key => $_sock){
5 p, u' ]( H9 w4 n5 Z - if($this->_sockets == $_sock){ //判断是不是新接入的socket
" P8 a6 L v1 K& I0 F7 a - if(($newClient = socket_accept($_sock)) === false){6 z9 M4 ?+ u4 q( ^! n3 `
- die('failed to accept socket: '.socket_strerror($_sock)."\n");6 w* @2 X7 g" O5 y" ]; ~% [+ M
- }
" g3 a7 [0 F0 T6 ^ - $line = trim(socket_read($newClient, 1024));
4 Z3 Q$ Y/ _( Q% p - $this->handshaking($newClient, $line);
/ R3 e. x8 w# o. R% } - //获取client ip
; ^/ R/ S4 X; j - socket_getpeername ($newClient, $ip);5 Y- R Z4 e T- v
- $clients[$ip] = $newClient;
( ^6 \# k$ x m - echo "Client ip:{$ip} \n";8 C$ f8 y! ]) _9 N
- echo "Client msg:{$line} \n";2 d6 k2 w7 n' C
- } else {
3 p6 }$ I: `: K" Z( u - socket_recv($_sock, $buffer, 2048, 0);& ]8 p# s: I- \- o6 ~
- $msg = $this->message($buffer);5 i+ ^6 c" {" n" \1 h+ T
- //在这里业务代码
# m7 v# |, Z6 u - echo "{$key} clinet msg:",$msg,"\n";
) B5 R8 a# Z% M4 t' R - fwrite(STDOUT, 'Please input a argument:');, X2 W2 N# @8 D' b3 Q
- $response = trim(fgets(STDIN));
4 B* }/ y. d. C% W3 y0 J; @4 } - $this->send($_sock, $response);
6 h6 d F6 \8 s- w( y - echo "{$key} response to Client:".$response,"\n";4 I" ^$ z2 i7 Z7 _# J# y) s
- }
4 ]' d8 @4 F* F% l! B1 G/ b* j! @ - }
$ @6 y9 J9 d* g, ~ m - }
2 U/ U; N* J1 ? - }( Q: r& p2 m1 I4 n- s6 V
- - M$ b; }3 F! k' B: Q8 c' \( |9 t
- /**! a% S4 w3 g4 X6 \* K8 J
- * 握手处理& v7 E- C' A8 Q" \
- * @param $newClient socket; v: ]% r" R* A& R) H; D& |! D
- * @return int 接收到的信息
% z" ]2 x# e4 o) q a; }* c - */
$ J: Y: J0 W/ I( p; Z9 v8 w - public function handshaking($newClient, $line){/ Q, ] r5 Y- `$ y! e
-
2 Y; c v- Q4 g% u - $headers = array();2 l# m9 }' k! J+ f$ k) R* n
- $lines = preg_split("/\r\n/", $line);* N$ j; f$ m( c
- foreach($lines as $line) P4 R+ k% f% a7 J8 J( Q
- {7 p7 v. s) w& _/ l- {! K' }2 Y: N" g
- $line = chop($line);
& `8 O1 P) A# Q2 U' o) U% e) O - if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))
3 x; d. j+ C8 B; y9 z( u - {% O- @: F9 X4 t* g( R8 F' e# K! l
- $headers[$matches[1]] = $matches[2];
2 z2 H- r I2 k+ }) a" C1 b - }( Y5 ~0 I; A/ R& Y* Y- Q
- }
% ~" Z' H% `9 ]6 |! \, Z* P - $secKey = $headers['Sec-WebSocket-Key'];2 U& h2 j& Y+ @2 _% z I F" c; k" m
- $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
0 W; H9 W' j% H - $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .) L) E) C3 ~: A: r
- "Upgrade: websocket\r\n" .
# s9 L) a1 s; d3 E4 n' ? r6 A. V - "Connection: Upgrade\r\n" .9 V' B A/ M4 y3 }
- "WebSocket-Origin: $this->address\r\n" .3 k4 ?5 P4 t6 }: C. D
- "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".
* G5 w& U. @8 C* p* u n* D+ J - "Sec-WebSocket-Accept:$secAccept\r\n\r\n";& |0 G7 Q8 u$ E
- return socket_write($newClient, $upgrade, strlen($upgrade));9 u: H0 r0 w4 |3 ` ]. _* X
- }' A: K3 \4 x9 \3 D8 V! {
- / e% `; w* q) w; d6 `3 U/ c7 z
- /**
+ }- d6 [7 R/ Z7 W - * 解析接收数据% b+ e( V( Z, `" o& K/ t1 u# X
- * @param $buffer1 u& Z T& z1 Z) ~
- * @return null|string" e5 y* G. F" H* ` s3 Z
- */
3 e/ p2 e' a) ]2 B6 ^, B; ~. x - public function message($buffer){
' L- z2 g$ ~9 O; R- ~9 c# \ - $len = $masks = $data = $decoded = null;( k8 x+ H. @( p g! i: M% N
- $len = ord($buffer[1]) & 127;3 N8 C1 A( p2 T* b( [, @
- if ($len === 126) {) R* ^$ [9 [! p9 z. H4 X! i
- $masks = substr($buffer, 4, 4);
& g6 B( D+ n4 n - $data = substr($buffer, 8);2 F: U9 \4 o( l1 K
- } else if ($len === 127) {+ ?9 H. ]/ { R
- $masks = substr($buffer, 10, 4);
" }0 c: n9 Y. y1 `# A - $data = substr($buffer, 14);
3 O D, r6 G. Q' {% q - } else {2 N/ P) g7 x9 g( F: E( [
- $masks = substr($buffer, 2, 4);
- N' g* R1 N6 v6 p7 B - $data = substr($buffer, 6);5 y" ~, d7 x1 z0 O" j( C- C
- }
. v) n, m- h& I x& K - for ($index = 0; $index < strlen($data); $index++) {- O& o9 b4 R" m: J
- $decoded .= $data[$index] ^ $masks[$index % 4];- N- V- Z: t2 ?& L' g7 }
- }. ~% D- p8 y! [2 @" n6 a9 P+ m& G, A1 [
- return $decoded;
' m( N& a( F& |. ] - }" \# h4 ?+ n" p
-
2 o7 i7 H# A- G. g5 R - /**4 [: w6 j) H @; v
- * 发送数据% M" _: t/ l7 K
- * @param $newClinet 新接入的socket5 G2 E7 z0 j& [/ f
- * @param $msg 要发送的数据
3 _1 x# p2 K- r9 e# T1 m - * @return int|string# N0 W7 ?3 [6 s# o/ J3 M- M6 {
- */
& F2 g) z% ?4 R/ B' u7 x - public function send($newClinet, $msg){
G9 x$ S; E" _( D9 q - $msg = $this->frame($msg);
) B( Z. x+ ?8 P0 b+ `# X - socket_write($newClinet, $msg, strlen($msg));
5 \" I( Y, `- E9 h! o - }1 O# f, Y5 j7 c5 E1 X! f- T
- ( C6 u* `# `( w% g
- public function frame($s) {
# g# a& a. c+ v. _ - $a = str_split($s, 125); A; c2 [& @0 t
- if (count($a) == 1) {- _) c$ u; `3 v( m8 I/ j% S' @. J
- return "\x81" . chr(strlen($a[0])) . $a[0];
3 C, m. \ K7 v - }
- E w- g! k( J. P+ T" t - $ns = "";
7 B2 g' r3 E# d. y - foreach ($a as $o) {( g5 }; x# |/ x! b P0 o( G
- $ns .= "\x81" . chr(strlen($o)) . $o;
/ ?' w; `; L- g, e; N - }# k/ K/ T; o# ^5 p
- return $ns;% {; f- b; O+ _3 T$ E' V1 T3 l
- }
9 d! [! c1 I" w4 h2 @ -
0 L" i7 \; G1 q3 e - /**! {! K, O7 X: l0 ^
- * 关闭socket& @6 O6 Q& t2 B O
- */
, T8 {- Z- I& K% V, q' o: J - public function close(){1 s O, z" j2 _
- return socket_close($this->_sockets);( Z- v7 O/ C# ?( \% H' X
- }$ \+ r; P' t' i) b
- }8 g) R* ]! ?. |& u
-
4 B: v, R! N5 u - $sock = new SocketService();2 Y) B( `' j ?, F' j
- $sock->run();& L3 T/ [! l; L! E, t2 E5 P
5 z M' n( q+ _' s. w) _
复制代码 web.html
0 o+ A" Q$ A8 v/ N4 d' a( m) p- <!doctype html>
) V* I8 y. R8 W4 P: H - <html lang="en">
( |3 ~# t4 O9 ^( K - <head>
) e4 A' L4 a. U" L L3 A# h - <meta charset="UTF-8">6 `$ u8 @+ ?2 t& z! R& @/ p
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">
2 J' i) U2 i. V - <title>websocket</title>
9 U: i; y' ?* k( o+ E - </head>8 m' o2 G- ~9 ~8 f& @: W; n8 D
- <body>8 N7 e1 _6 z, Q' \8 ?6 B: a
- <input id="text" value="">: P X4 z9 b+ j. @
- <input type="submit" value="send" onclick="start()">$ I% y" X8 J6 h
- <input type="submit" value="close" onclick="close()">: j9 F# `; [! l8 _4 f9 `- h) b+ v. F1 ^
- <div id="msg"></div>/ w$ P+ K1 O, f- P- N
- <script>
5 p2 C4 a9 h# Z- b- Q7 t+ F - /**
5 Z9 B% C! F6 B7 }# ]+ i- s6 r; F - 0:未连接
4 _- ?+ e6 t' B% ]. ^: H - 1:连接成功,可通讯
- P% @$ a7 j& ]- t! T9 Y! K - 2:正在关闭
( X. n* J7 Y' p( @ - 3:连接已关闭或无法打开
/ |( K u2 p: O% d - */$ D8 o% G5 e2 }
-
9 ^$ u3 h5 _+ X. ?# t8 `' J. K - //创建一个webSocket 实例
- j2 X Y' G9 Z - var webSocket = new WebSocket("ws://192.168.31.152:8083");: l, m* C4 i& p2 x, M( W, C
-
/ K/ `2 b8 e9 q$ i7 [2 { - & B4 t/ `: F* W( X5 h% z
- webSocket.onerror = function (event){7 \$ ]( M0 g4 |7 F
- onError(event);
% A% Q7 `$ O/ p$ }' l ]7 D - };% j7 ~9 M) W: M3 X8 }
- I4 F+ w" x9 G1 I( |
- // 打开websocket6 [; o E: i' T- E4 d
- webSocket.onopen = function (event){
/ ~8 m; Q$ C* [+ o0 D; W' o' {7 U" H# t - onOpen(event);
8 s) @8 R1 A+ z: }. y - };* b( I' D/ ~# x! n0 } N0 e
-
; U0 J: Q' d2 i; M5 A5 m, f - //监听消息
* }, g7 l: @( j - webSocket.onmessage = function (event){' P" _8 S6 X+ N# W w
- onMessage(event);3 I9 }1 N0 K5 i. }" L0 o" x+ b. V' |
- };. c! N. s: k. Y& U: I
-
8 z+ ^) _4 O& i M2 v+ \ - . y# l! `$ K0 x0 z: w4 N% N0 [" e) e( Q
- webSocket.onclose = function (event){4 Y: m9 F' t& f J- [# v1 a* f- I
- onClose(event);0 ]$ K E. C7 l
- }
' I0 w- U) U& O7 }2 H- U* v+ {6 h8 V -
/ q7 h1 z ~' l, ~( t" ~ - //关闭监听websocket
( d+ E4 K- x- p3 s - function onError(event){
9 p. l: p: z x8 x4 }" i& a - document.getElementById("msg").innerHTML = "<p>close</p>";
% C7 I0 G4 ], Z: v. e' ` - console.log("error"+event.data);% C9 \+ _. a4 a7 Z n+ m
- };. _& q. b" g6 a7 w+ T
-
7 u/ z$ V$ `8 w! y. ]0 O - function onOpen(event){
9 K- _$ p2 W; V9 G v) s! h( ~$ q - console.log("open:"+sockState());$ ?# ~% F" `' ^: x1 t% o
- document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";2 Z9 M! V* p" q5 a$ j& H2 i
- };5 ~; K8 G5 i& F+ \( a0 g
- function onMessage(event){
- V' O8 \. b& y+ c8 W - console.log("onMessage");
8 A* k5 }+ J: e+ V4 s) H - document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"
/ z) o, X0 Q* ~2 u+ J) S w - };) b3 f2 H. Z: \8 x6 x% K
- 3 V# k4 u# E3 X7 `& ^. L% s4 V
- function onClose(event){- @; G# G% L/ ?1 G+ ]
- document.getElementById("msg").innerHTML = "<p>close</p>";
# J& M' r: I" O - console.log("close:"+sockState());( ^; e* u# t5 f7 l- s' a
- webSocket.close();; Z5 a) G( _& L/ a
- }
5 R) g& w: p3 @( x8 D0 U9 ?, k, \, z$ j5 e - + m$ i* @/ _2 M B3 l
- function sockState(){- a, H. g( `+ B- h! A! ^' F
- 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'];: x6 J4 e0 N/ J4 z J, g9 u
- return status[webSocket.readyState];& v+ Y( f' r7 J3 _0 g
- }8 @6 k) _2 B% E
- ; Y! z9 { E* Z# Q& S6 Z
-
% n' b8 V$ ]5 S/ ] - # B+ m, [$ `( U: {. y0 E& y
- function start(event){6 G8 g. n/ M% V1 ?# I4 }; ]
- console.log(webSocket);
5 `" L5 j3 _6 X; D! O1 R - var msg = document.getElementById('text').value;
" c6 V6 a- b( U7 X d# V8 a% \& o - document.getElementById('text').value = '';
* N, @5 c) [1 ^7 u% s! L. G/ L - console.log("send:"+sockState());
" n7 g: h6 {4 a: k! r - console.log("msg="+msg);8 O" Q1 O: c) x( U9 i: ~
- webSocket.send("msg="+msg);4 ?( E: U' o1 s1 @& U" Q
- document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
- [5 @3 {4 n) a5 o3 X9 }! O0 G9 } - };
1 t* K+ I& s9 K6 ?! O -
+ H4 Z! ? \6 J1 n5 b9 n - function close(event){4 }4 {/ i3 q/ ^6 E
- webSocket.close();& B0 c0 I$ B3 y/ F$ `
- }
' W, B3 N4 S) S - </script>8 K( e, P k; N3 q; ^
- </body>* j/ T; J9 q5 m; V3 h6 p4 `
- </html>
复制代码 % P$ U! l" ^0 ~% W' F. q( A" s
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