Create a websocket service using PHP

Execution method: First modify the IP of server.php and index.html Execute [PHP path]\php.exe] [file path]\server.php] from the command line Then open index.html through the browser Include ' websocket.class.php '; $config =array ( ' Address ' = ' 192.168.0.200 ', ' Port ' = ' 8000 ', ' Event ' = ' wsevent ',//function name of the callback function ' Log ' =>true, ); $websocket = new WebSocket ($config); $websocket->run (); function Wsevent ($type, $event) { Global $websocket; if (' in ' = = $type) { $websocket->log (' Customer Entry ID: ' $event [' K ']); }elseif (' out ' = = $type) { $websocket->log (' Customer exit ID: ' $event [' K ']); }elseif (' msg ' = = $type) { $websocket->log ($event [' K ']. ' Message: '. $event [' msg ']); Roboot ($event [' sign '], $event [' msg ']; } } function Roboot ($sign, $t) { Global $websocket; Switch ($t) { Case ' Hello ': $show = ' hello,git @ OSC '; Break Case ' name ': $show = ' Robot '; Break Case ' time ': $show = ' Current time: '. Date (' y-m-d h:i:s '); Break Case ' goodbye ': $show = ' (^_^)/~~ goodbye '; $websocket->write ($sign, ' Robot: '. $show); $websocket->close ($sign); Return Break Case ' King of the Land Tiger ': $array = Array (' Chicken stew mushroom ', ' Pagoda Quake River Demon ', ' grain is hard '); $show = $array [rand (0,2)]; Break Default $show = ' (⊙o⊙?) Do not understand, you can try to say: Hello,name,time, Goodbye, the king of the Land Tiger. } $websocket->write ($sign, ' Robot: '. $show); } ?> Copy Code Websocket_test <li>=======websocket======<li> Copy Code /* Create Class WebSocket ($config); $config structure: $config =array ( ' Address ' = ' 192.168.0.200 ',//Bind addresses ' Port ' = ' 8000 ',//Bind port ' Event ' = ' wsevent ',//function name of the callback function ' Log ' =>true,//command line display record ); callback function returns data format function Wsevent ($type, $event) There are three types of string events $type: In Client Access Out Client Disconnects MSG Client message arrives are lowercase $event Array $event [' K '] userid with built-in user list; $event [' sign '] customer logo $event the message received by [' msg '] $type = ' msg ' Method: Run () Search (Mark) traversal to get the ID of the indicator Close (Mark) Disconnect Write (flag, message) push information Idwrite (ID, info) push information Property: $users Customer List Structure: $users =array ( [User Id]=>array (' socket ' =>[indicator], ' hand ' =[if handshake-boolean value]), [User Id]=>arr ..... ) */ Class websocket{ Public $log; Public $event; Public $signets; Public $users; Public $master; Public function __construct ($config) { if (substr (Php_sapi_name (), 0, 3)!== ' CLI ') { Die ("Run through command-line mode!"); } Error_reporting (E_all); Set_time_limit (0); Ob_implicit_flush (); $this->event = $config [' event ']; $this->log = $config [' Log ']; $this->master= $this->websocket ($config [' address '], $config [' Port ']; $this->sockets=array (' s ' = = $this->master); } function WebSocket ($address, $port) { $server = Socket_create (Af_inet, Sock_stream, sol_tcp); Socket_set_option ($server, Sol_socket, SO_REUSEADDR, 1); Socket_bind ($server, $address, $port); Socket_listen ($server); $this->log (' Start listening: ' $address. ': '. $port); return $server; } function Run () { while (true) { $changes = $this->sockets; @socket_select ($changes, $write =null, $except =null,null); foreach ($changes as $sign) { if ($sign = = $this->master) { $client =socket_accept ($this->master); $this->sockets[]= $client; $user = Array ( ' Socket ' = $client, ' Hand ' =>false, ); $this->users[] = $user; $k = $this->search ($client); $eventreturn = Array (' k ' = = $k, ' sign ' = = $sign); $this->eventoutput (' in ', $eventreturn); }else{ $len =socket_recv ($sign, $buffer, 2048,0); $k = $this->search ($sign); $user = $this->users[$k]; if ($len <7) { $this->close ($sign); $eventreturn = Array (' k ' = = $k, ' sign ' = = $sign); $this->eventoutput (' Out ', $eventreturn); Continue } if (! $this->users[$k [' hand ']) {//No Handshake for handshake $this->handshake ($k, $buffer); }else{ $buffer = $this->uncode ($buffer); $eventreturn = Array (' k ' = = $k, ' sign ' = = $sign, ' msg ' = $buffer); $this->eventoutput (' msg ', $eventreturn); } } } } } function Search ($sign) {//Pass ID traversal foreach ($this->users as $k = + $v) { if ($sign = = $v [' socket '] return $k; } return false; } function Close ($sign) {//Disconnect by marking $k =array_search ($sign, $this->sockets); Socket_close ($sign); unset ($this->sockets[$k]); unset ($this->users[$k]); } function handshake ($k, $buffer) { $buf = substr ($buffer, Strpos ($buffer, ' Sec-websocket-key: ') +18); $key = Trim (substr ($buf, 0,strpos ($buf, "\ r \ n"))); $new _key = Base64_encode (SHA1 ($key. ") 258eafa5-e914-47da-95ca-c5ab0dc85b11 ", true)); $new _message = "http/1.1 101 switching protocols\r\n"; $new _message. = "upgrade:websocket\r\n"; $new _message. = "sec-websocket-version:13\r\n"; $new _message. = "connection:upgrade\r\n"; $new _message. = "Sec-websocket-accept:". $new _key. "\r\n\r\n"; Socket_write ($this->users[$k [' socket '], $new _message,strlen ($new _message)); $this->users[$k] [' Hand ']=true; return true; } function Uncode ($STR) { $mask = Array (); $data = "; $msg = Unpack (' h* ', $str); $head = substr ($msg [1],0,2); if (Hexdec ($head beckham) = = = 8) { $data = false; }else if (Hexdec ($head beckham) = = = 1) { $mask [] = Hexdec (substr ($msg [1],4,2)); $mask [] = Hexdec (substr ($msg [1],6,2)); $mask [] = Hexdec (substr ($msg [1],8,2)); $mask [] = Hexdec (substr ($msg [1],10,2)); $s = 12; $e = strlen ($msg [1])-2; $n = 0; for ($i = $s; $i <= $e; $i + = 2) { $data. = Chr ($mask [$n%4]^hexdec (substr ($msg [1], $i, 2))); $n + +; } } return $data; } function code ($MSG) { $msg = preg_replace (Array ('/\r$/', '/\n$/', '/\r\n$/',), ', $msg); $frame = Array (); $frame [0] = ' 81 '; $len = strlen ($msg); $frame [1] = $len <16? ' 0 '. Dechex ($len):d Echex ($len); $frame [2] = $this->ord_hex ($msg); $data = Implode (' ', $frame); Return Pack ("h*", $data); } function Ord_hex ($data) { $msg = "; $l = strlen ($data); for ($i = 0; $i < $l; $i + +) { $msg. = Dechex (Ord ($data {$i})); } return $msg; } function Idwrite ($id, $t) {//push information by ID if (! $this->users[$id [' socket ']) {return false;} No sign of that. $t = $this->code ($t); Return Socket_write ($this->users[$id [' socket '], $t, strlen ($t)); } function Write ($k, $t) {//By marking push information $t = $this->code ($t); Return Socket_write ($k, $t, strlen ($t)); } function Eventoutput ($type, $event) {//Event callback Call_user_func ($this->event, $type, $event); } function log ($t) {//console output if ($this->log) { $t = $t. " \ r \ n "; Fwrite (STDOUT, Iconv (' Utf-8 ', ' Gbk//ignore ', $t)); } } } Copy Code

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