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php实现websocket实时消息推送
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SocketService.php
* {# d9 W+ q1 d/ U" ?: f- <?php1 |3 c5 [- y6 \! C3 J7 I
- /**+ |! A& U- \8 j' W
- * Created by xwx% D0 U3 r8 ]; o; H
- * Date: 2017/10/18
% y. e8 _5 A9 S3 r5 q0 q0 V* P' ^ - * Time: 14:33
7 B- v; S% a8 u4 g) s. Q0 G - */
( B3 K8 E/ Y' [' m -
* q. t2 x6 B# A$ @$ Z - class SocketService O+ r/ Y6 j0 Y
- {
# s% ^, m* v: y& |+ j! y - private $address = '0.0.0.0';: t( L) ~% O& p! w, |$ E8 |
- private $port = 8083;
6 N- a, R# N; a - private $_sockets;
9 H @" r0 ?, y% H - public function __construct($address = '', $port=''); ]5 Q9 h6 j: W; K+ k& W; R0 y6 `
- {
4 _- \: ^- W1 s& U V X1 ^4 n. P - if(!empty($address)){
6 b! H9 U$ Y2 X' _* ]7 V - $this->address = $address;
* O/ n4 { {0 Z) q% x - }5 w R$ S+ h1 l" b2 M, t
- if(!empty($port)) { v, h/ A4 K( W$ h$ x5 q
- $this->port = $port;
`9 e( r7 s+ P8 u4 @, w - }& g5 ]+ d+ `. r/ m
- }! t0 \) A9 [2 e
-
3 O0 O# t9 ]# n1 ^3 K - public function service(){$ P( k% k2 I; I+ r5 b f
- //获取tcp协议号码。1 w" X* j4 W' m# w5 I+ R7 a
- $tcp = getprotobyname("tcp");
, p6 g. K( a5 t( ~, V3 Q - $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);# r9 b& F/ W8 u- E0 }$ U
- socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);) ^4 ~) P! y, j' s" y
- if($sock < 0)! i' ~1 K% {5 Z% {$ O" M& M R
- {" I7 Q; [& y1 b+ W
- throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");
' V1 N' k4 Z# V: n - }
8 J `( Q8 O C8 C$ G$ ?2 ` - socket_bind($sock, $this->address, $this->port);
2 M+ p9 x5 ^: ~; M$ J4 u3 n - socket_listen($sock, $this->port);
0 c% F8 k2 X9 h( z9 Y, O/ H - echo "listen on $this->address $this->port ... \n";
5 ?. d( Q* }0 w5 L7 b - $this->_sockets = $sock;
}( C! x7 c# w1 F; z - }! v9 [4 Z' e- U( v0 l, R; |' T; B
-
$ ]) @, s- ]$ t# f/ a; E/ W - public function run(){
3 e# E: O- W- |) w' U - $this->service();! f% E% T1 B: m( y* U# ]. p ^. T- K4 ?
- $clients[] = $this->_sockets;/ w2 K A c3 m6 x5 X7 s: v
- while (true){% i6 L. Y* J! x- f" F
- $changes = $clients;
: w9 X0 a/ W6 U - $write = NULL;
5 p9 q8 i8 u- L# v Y/ u+ j: r - $except = NULL;+ N2 F- h4 ?( I" W; i R
- socket_select($changes, $write, $except, NULL);
% \4 V, V' `) k3 h0 ~2 m - foreach ($changes as $key => $_sock){0 J7 z1 s0 b2 ?1 r l1 A. [
- if($this->_sockets == $_sock){ //判断是不是新接入的socket
7 q% H. `! s* z6 g, |8 d - if(($newClient = socket_accept($_sock)) === false){; ]% W1 p! a5 Q' v- Y# X5 m
- die('failed to accept socket: '.socket_strerror($_sock)."\n");5 n% r: p# M2 F$ ]: L% N
- }
& G# f: x+ r3 W( b; d- y - $line = trim(socket_read($newClient, 1024));$ H1 e7 f1 z' v
- $this->handshaking($newClient, $line);! d1 U5 |& d; N/ j
- //获取client ip
2 E* C2 o6 ]6 l1 m: V - socket_getpeername ($newClient, $ip);
. A+ m( s" h1 Y& s4 u# { - $clients[$ip] = $newClient;
Y, W) V D0 o3 o8 @- @ - echo "Client ip:{$ip} \n";* s/ n$ A% E% r1 j
- echo "Client msg:{$line} \n";
- w1 y: f) I: l4 F6 E' N - } else {
. U6 ~* C1 A, `; J. t - socket_recv($_sock, $buffer, 2048, 0);) j# E; J+ u& d- B% |. K) [% R! U
- $msg = $this->message($buffer);
# ?, d9 F" ~; F! E, h8 U9 {' U8 l- o - //在这里业务代码0 h4 t) p& g7 h# J, o. B
- echo "{$key} clinet msg:",$msg,"\n";0 S5 {8 d' P4 D8 {2 \
- fwrite(STDOUT, 'Please input a argument:');3 a$ ]% g' q1 \0 \8 l* r
- $response = trim(fgets(STDIN));# m" q3 [7 v0 m( B- r: _
- $this->send($_sock, $response);
- G: {9 m5 U( I$ h. b - echo "{$key} response to Client:".$response,"\n";
6 I) i) V; j8 ^0 Q, W - }
' `% l a) J6 q( g - }
% A* h3 q8 f3 @" f7 [) ?& Z - }
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-
! `2 a" S' j! ~9 z: A - /**
. P2 S1 ]' ?0 R* Z& c - * 握手处理! x) P! t9 }. @8 b9 o- {( h7 M
- * @param $newClient socket- T6 i7 ?# E9 @- W
- * @return int 接收到的信息& J) N4 ^/ h7 D: W1 g) o2 r
- */* X; r( P& J+ l3 I
- public function handshaking($newClient, $line){) L5 ~( `, C7 d- v7 D0 F/ w3 ~
-
( J9 q/ N" d# P! |* \ - $headers = array();( X. m0 _; s/ l" D3 @
- $lines = preg_split("/\r\n/", $line);
" V- [; n" I5 e/ b$ A: u! K - foreach($lines as $line)/ y0 e2 n1 g$ P1 E) }. s
- {
6 s t- g0 N" o8 P8 s - $line = chop($line);
+ G% @5 y/ {/ ^: e1 X - if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))* r7 M2 \" W5 B' s
- {6 k# o1 l4 Y8 `5 }$ g" o
- $headers[$matches[1]] = $matches[2];
" e. e, q2 l5 Y - }$ k- [& A3 L: O
- }
0 I O% ]& ~ u( T6 h t: ^ - $secKey = $headers['Sec-WebSocket-Key'];
" n$ J5 L! w$ r# v. u - $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));" T* u( {' `7 N8 h9 K+ Y
- $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .
; l @2 q4 _/ U! |" } - "Upgrade: websocket\r\n" .! f3 z% ^8 b3 z- ~2 }, T
- "Connection: Upgrade\r\n" .1 R+ f1 V- W/ J# I" b" x) U$ F
- "WebSocket-Origin: $this->address\r\n" .
6 z3 I5 s3 G8 g# z7 W - "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".
7 x6 \% l4 L' H, z6 I8 o' } - "Sec-WebSocket-Accept:$secAccept\r\n\r\n";5 x/ c9 D: i6 g/ b1 f, `
- return socket_write($newClient, $upgrade, strlen($upgrade));
* g7 G0 e2 q/ L' w' m% a2 D, U - }
+ ]+ q- A0 K& K8 @& e - . `' {1 S1 m: B, T
- /**
* W6 U* V. g( ^ Y) [/ ? - * 解析接收数据. z' W" }% Z& n
- * @param $buffer
8 S0 F* l* S! G3 P- f& d5 K5 @ - * @return null|string+ E8 j) V5 w0 J3 `; m" B
- */
A9 m& S4 E3 \, @ - public function message($buffer){
* T9 e" V8 ~+ k) | v - $len = $masks = $data = $decoded = null; k& O9 i6 n. \3 i$ z, L7 r' @8 z$ b+ X
- $len = ord($buffer[1]) & 127;
2 I% r5 T+ e2 r# }$ x1 q5 y9 w - if ($len === 126) {
5 e2 E. h2 q& z/ W5 a! E - $masks = substr($buffer, 4, 4);
) `# K! W3 ?9 G" A - $data = substr($buffer, 8);4 s7 u" L% w/ q$ `* p
- } else if ($len === 127) {( M& [1 E& f" D2 }- k. s8 Y
- $masks = substr($buffer, 10, 4);
- b- o0 V/ r+ z* @& G' ] - $data = substr($buffer, 14);2 y! |/ ^4 P& |0 @$ }( |4 C$ B
- } else {, l6 O/ q% n2 [
- $masks = substr($buffer, 2, 4);% w+ I1 r% D7 _) L
- $data = substr($buffer, 6);
8 e9 z. u1 P" m0 j$ n) H - }
7 i8 o5 x; V9 h8 \ - for ($index = 0; $index < strlen($data); $index++) {
$ t& U* S0 h0 c5 j/ d - $decoded .= $data[$index] ^ $masks[$index % 4];
" L" s2 {" h4 Q; g0 g5 @ - }" J* N! }. u* U/ y
- return $decoded;/ I* L6 x: C. w/ k9 _3 T5 d' |
- }: L; Z/ S$ `* U* X5 Y( w& b
- 0 M7 v/ O4 P7 B2 }' k% q
- /**' b+ |4 t1 z- B! c1 N, i& O
- * 发送数据0 M, O9 m* d6 E' s
- * @param $newClinet 新接入的socket
. U' l" Y0 @: {' J6 _) K - * @param $msg 要发送的数据( P8 }+ ~7 E5 p8 P2 R. Y' `3 {
- * @return int|string9 a5 @. K" ~2 w5 e
- */
7 k( b8 Z5 [4 a; E - public function send($newClinet, $msg){
+ F |$ C: G3 ~0 C - $msg = $this->frame($msg);
4 c/ k$ q3 Q. W. Q: z - socket_write($newClinet, $msg, strlen($msg));" ]) }% X; E) T: Q
- }
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- public function frame($s) {7 G( p- R: L' ]* s
- $a = str_split($s, 125);
p1 E" T- F3 _- Y6 W$ L9 X/ t - if (count($a) == 1) {
8 C$ ] B% T6 d5 E5 V - return "\x81" . chr(strlen($a[0])) . $a[0];2 b* h; J- K# W/ S' h
- }' c2 V" n' g ^& G1 X/ | @8 o3 A6 Y
- $ns = "";
$ M7 V" S& O+ |$ `3 ~, g N - foreach ($a as $o) {
1 x$ ^$ d4 O& V& R# G! f: U - $ns .= "\x81" . chr(strlen($o)) . $o;
, D9 a* a) W: d - }
) s0 F* {3 Q2 k" o0 S8 \$ w$ J! L - return $ns;
; _; a& F, k0 X* `1 [ - }' J3 U7 M, E! B+ X% h% p
- : E2 E2 }) v) _9 ^- M& M# r5 _
- /**9 K7 T b" _, o% [3 D& X
- * 关闭socket
4 X, a, t0 I; y - */% K6 R; _* b9 D7 b9 q1 q+ L
- public function close(){
/ z- i% V2 q1 D' O4 W - return socket_close($this->_sockets);
- O3 \( H5 O* u( l - }" m. ^8 _6 `3 X
- }
% `8 e" z8 j+ K; E - s6 H6 m s! D) Y( ]
- $sock = new SocketService();! Z& ^$ o8 M% Z- Y
- $sock->run();) n; i1 O: E) E: f6 {% K
- 6 } x- W& A2 j4 v# p
复制代码 web.html
5 F2 ^; F7 V9 P- <!doctype html>0 `5 U8 J! P8 p1 I
- <html lang="en">
$ [( y' r* X3 d* M7 }) n& ?8 L - <head>9 _# T/ m) x3 C6 l- X
- <meta charset="UTF-8">; ]/ m0 r3 L( M ?
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">
7 l) B2 G- t1 h8 Z5 W! K2 C( a" M - <title>websocket</title>, h$ Y& D: I( m. ]3 \
- </head>
0 L, D z& x' T, f$ R' Z - <body>( ~" s* L7 H$ m3 z$ Q+ M
- <input id="text" value="">
) @7 h+ q2 k- m" O% u9 I* ]" L - <input type="submit" value="send" onclick="start()">
: }% z! y6 Y, u \0 i - <input type="submit" value="close" onclick="close()">
/ @: \' p- X% q, G - <div id="msg"></div>
0 t# r6 m, z" W o - <script>) P" }3 f& `3 L6 \
- /** z) [3 Z! f) F! s/ P r8 x
- 0:未连接
! ^, X, T G, z0 K6 v+ I% n! T6 W3 R - 1:连接成功,可通讯
% h" ^# U0 z+ W. q* y5 Y# M - 2:正在关闭
" m% q0 E ~6 A - 3:连接已关闭或无法打开
5 k& v0 q- ^7 J; ^# E - */1 Q) O9 P8 R9 Y- g1 D
- 3 a, ?, X- G6 Y& i8 w, K
- //创建一个webSocket 实例: P- ?% }" t: S
- var webSocket = new WebSocket("ws://192.168.31.152:8083");
w) y; S) l0 } - / z# _1 q' H& L; L/ G
-
# ?6 m% }- N# Y0 d+ T* O- G - webSocket.onerror = function (event){) l/ \* A+ @. F$ k, j8 V
- onError(event);1 c: F( Q$ L& `% | V9 l& c2 E
- };
8 Y0 u( I2 m: C. E - ( a( G9 u6 f4 a2 ]
- // 打开websocket8 D" @4 A' |3 H7 c2 m
- webSocket.onopen = function (event){
" ^# y8 E0 D" m5 c! l6 d - onOpen(event);
" G6 H$ Y9 r. [$ z& s - };
+ M; r1 m- \. H -
9 l- Z- E1 o# \3 n2 i - //监听消息4 Z5 W% B+ Z4 j, Q* ]
- webSocket.onmessage = function (event){' a% l0 r# \$ Q
- onMessage(event);
, `5 _1 D3 J: { - };
, @& v" n; g k8 U9 }5 E1 C* J' y - & ]9 D I# \+ p$ s6 h2 i
- 2 b8 W. j/ Q: _0 Z; X7 u0 r1 x0 q
- webSocket.onclose = function (event){
: z" {3 @' ]; a- @' \: ]% H; z - onClose(event);
2 m3 n6 G. L4 s- K k - }% U$ P' d& f, |, N' K6 z) b; V" o
- 2 P" m" ?1 R" U; S- D6 c: k
- //关闭监听websocket
1 Z& n* o/ Q' @$ y: F% z - function onError(event){+ M& N: e, s# x0 l' J
- document.getElementById("msg").innerHTML = "<p>close</p>";
. ]. G, r4 n x9 P% Q. T - console.log("error"+event.data);3 X4 f4 s: u) L1 u' J/ O# M0 c% v( m
- };2 ~+ z2 \# P$ C4 a! J; M; ~& i8 L
-
2 F8 Y9 R8 i3 D+ Y7 u; Y - function onOpen(event){( k x+ ?# R x) }' W, l" E, t% m: M
- console.log("open:"+sockState());
* f Y2 z4 O- N3 X, U - document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";
0 {- X8 L- }# @) x& G8 h7 N- @ - };- j# { Y( `) D
- function onMessage(event){( o l9 y* e9 i6 z; ]
- console.log("onMessage");5 E/ Y; @# X; `' {! |' @% {. `% b
- document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"8 u: x3 b0 d$ G1 a
- };
, y) l: N" ~/ @ - , Q3 R# l7 x9 D3 O+ F/ ?
- function onClose(event){
" z# I% {& ]& a& R - document.getElementById("msg").innerHTML = "<p>close</p>";7 c6 v0 v& a$ c) g
- console.log("close:"+sockState());
# Y# x3 p, b; @+ j: O2 y5 C! _ - webSocket.close();
% S P; {: T% l* c - }# f3 I. {0 P. _0 `8 o
- / y" n7 G% }. D& c) T
- function sockState(){, u" `4 N5 U9 K! r8 q 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'];
5 l9 a: k. j: A' s2 ? - return status[webSocket.readyState];6 O0 y- O. O1 a8 c. W
- }/ q# q% l% h* ~- D
-
7 J; G0 X& I; s9 y1 q2 G - / z. ^/ G3 H. @/ t' a
- % y+ Z; g) Y' b
- function start(event){
8 F5 f: B# d+ ]& v0 d - console.log(webSocket);
j; k& M8 i$ t - var msg = document.getElementById('text').value;. q* N- y: j, a L9 V
- document.getElementById('text').value = '';
* E$ w* Y/ N1 O3 A4 F, Y: i - console.log("send:"+sockState());
- H# r2 F1 ^- } - console.log("msg="+msg);7 C7 A) {2 n* g8 ?$ V3 ]4 O$ y
- webSocket.send("msg="+msg);3 C" I# x7 Y- o. B
- document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"$ K0 i5 \6 O) f7 a5 `, M
- };/ E/ D% u; { E. q7 ^8 ?
- 3 Y, U2 V4 G" W, G9 {/ b/ V( }; O
- function close(event){
8 s0 ^" R9 Q" g' f - webSocket.close();
3 D4 x0 {1 _# w3 g" i' z - }* s* E7 @4 ~9 Y1 L
- </script>- J4 r# t4 @, w+ [0 N# w
- </body>1 r; U O9 S" q% _# a# x
- </html>
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