<?phpnamespace Common\Library;// ini_set('display_errors', 1);// error_reporting(E_ALL);/** * Very basic websocket client. * Supporting draft hybi-10. * * @author Simon Samtleben <web@lemmingzshadow.net> * @version 2011-10-18 */class WebSocketClient{ private $_host; private $_port; private $_path; private $_origin; private $_Socket = null; private $_connected = false; public function __construct() { } public function __destruct() { $this->disconnect(); } public function sendData($data, $type = 'text', $masked = true) { if($this->_connected === false) { trigger_error("Not connected", E_USER_WARNING); return false; } if( !is_string($data)) { trigger_error("Not a string data was given.", E_USER_WARNING); return false; } if (strlen($data) == 0) { return false; } $res = @fwrite($this->_Socket, $this->_hybi10Encode($data, $type, $masked)); if($res === 0 || $res === false) { return false; } $buffer = ' '; while($buffer !== '') { $buffer = fread($this->_Socket, 512); } return true; } public function connect($host, $port, $path, $origin = false) { $this->_host = $host; $this->_port = $port; $this->_path = $path; $this->_origin = $origin; $key = base64_encode($this->_generateRandomString(16, false, true)); $header = "GET " . $path . " HTTP/1.1\r\n"; $header.= "Host: ".$host.":".$port. "\r\n"; $header.= "Upgrade: websocket\r\n"; $header.= "Connection: Upgrade\r\n"; //$header.= "Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits\r\n"; $header.= "Sec-WebSocket-Key: " . $key . "\r\n"; if($origin !== false) { $header.= "Sec-WebSocket-Origin: " . $origin . "\r\n"; } $header.= "Sec-WebSocket-Version: 13\r\n\r\n"; $this->_Socket = fsockopen($host, $port, $errno, $errstr, 2); socket_set_timeout($this->_Socket, 2, 10000); //socket_write($this->_Socket, $header); $res = @fwrite($this->_Socket, $header); if( $res === false ){ echo "fwrite false \n"; } $response = @fread($this->_Socket, 1500); //$response = socket_read($this->_Socket); preg_match('#Sec-WebSocket-Accept:\s(.*)$#mU', $response, $matches); if ($matches) { $keyAccept = trim($matches[1]); $expectedResonse = base64_encode(pack('H*', sha1($key . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11'))); $this->_connected = ($keyAccept === $expectedResonse) ? true : false; } return $this->_connected; } public function checkConnection() { $this->_connected = false; // send ping: $data = 'ping?'; @fwrite($this->_Socket, $this->_hybi10Encode($data, 'ping', true)); $response = @fread($this->_Socket, 300); if(empty($response)) { return false; } $response = $this->_hybi10Decode($response); if(!is_array($response)) { return false; } if(!isset($response['type']) || $response['type'] !== 'pong') { return false; } $this->_connected = true; return true; } public function disconnect() { $this->_connected = false; is_resource($this->_Socket) and fclose($this->_Socket); } public function reconnect() { sleep(10); $this->_connected = false; fclose($this->_Socket); $this->connect($this->_host, $this->_port, $this->_path, $this->_origin); } private function _generateRandomString($length = 10, $addSpaces = true, $addNumbers = true) { $characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"ยง$%&/()=[]{}'; $useChars = array(); // select some random chars: for($i = 0; $i < $length; $i++) { $useChars[] = $characters[mt_rand(0, strlen($characters)-1)]; } // add spaces and numbers: if($addSpaces === true) { array_push($useChars, ' ', ' ', ' ', ' ', ' ', ' '); } if($addNumbers === true) { array_push($useChars, rand(0,9), rand(0,9), rand(0,9)); } shuffle($useChars); $randomString = trim(implode('', $useChars)); $randomString = substr($randomString, 0, $length); return $randomString; } private function _hybi10Encode($payload, $type = 'text', $masked = true) { $frameHead = array(); $frame = ''; $payloadLength = strlen($payload); switch($type) { case 'text': // first byte indicates FIN, Text-Frame (10000001): $frameHead[0] = 129; break; case 'close': // first byte indicates FIN, Close Frame(10001000): $frameHead[0] = 136; break; case 'ping': // first byte indicates FIN, Ping frame (10001001): $frameHead[0] = 137; break; case 'pong': // first byte indicates FIN, Pong frame (10001010): $frameHead[0] = 138; break; } // set mask and payload length (using 1, 3 or 9 bytes) if($payloadLength > 65535) { $payloadLengthBin = str_split(sprintf('%064b', $payloadLength), 8); $frameHead[1] = ($masked === true) ? 255 : 127; for($i = 0; $i < 8; $i++) { $frameHead[$i+2] = bindec($payloadLengthBin[$i]); } // most significant bit MUST be 0 (close connection if frame too big) if($frameHead[2] > 127) { $this->close(1004); return false; } } elseif($payloadLength > 125) { $payloadLengthBin = str_split(sprintf('%016b', $payloadLength), 8); $frameHead[1] = ($masked === true) ? 254 : 126; $frameHead[2] = bindec($payloadLengthBin[0]); $frameHead[3] = bindec($payloadLengthBin[1]); } else { $frameHead[1] = ($masked === true) ? $payloadLength + 128 : $payloadLength; } // convert frame-head to string: foreach(array_keys($frameHead) as $i) { $frameHead[$i] = chr($frameHead[$i]); } if($masked === true) { // generate a random mask: $mask = array(); for($i = 0; $i < 4; $i++) { $mask[$i] = chr(rand(0, 255)); } $frameHead = array_merge($frameHead, $mask); } $frame = implode('', $frameHead); // append payload to frame: $framePayload = array(); for($i = 0; $i < $payloadLength; $i++) { $frame .= ($masked === true) ? $payload[$i] ^ $mask[$i % 4] : $payload[$i]; } return $frame; } private function _hybi10Decode($data) { $payloadLength = ''; $mask = ''; $unmaskedPayload = ''; $decodedData = array(); // estimate frame type: $firstByteBinary = sprintf('%08b', ord($data[0])); $secondByteBinary = sprintf('%08b', ord($data[1])); $opcode = bindec(substr($firstByteBinary, 4, 4)); $isMasked = ($secondByteBinary[0] == '1') ? true : false; $payloadLength = ord($data[1]) & 127; switch($opcode) { // text frame: case 1: $decodedData['type'] = 'text'; break; case 2: $decodedData['type'] = 'binary'; break; // connection close frame: case 8: $decodedData['type'] = 'close'; break; // ping frame: case 9: $decodedData['type'] = 'ping'; break; // pong frame: case 10: $decodedData['type'] = 'pong'; break; default: return false; break; } if($payloadLength === 126) { $mask = substr($data, 4, 4); $payloadOffset = 8; $dataLength = bindec(sprintf('%08b', ord($data[2])) . sprintf('%08b', ord($data[3]))) + $payloadOffset; } elseif($payloadLength === 127) { $mask = substr($data, 10, 4); $payloadOffset = 14; $tmp = ''; for($i = 0; $i < 8; $i++) { $tmp .= sprintf('%08b', ord($data[$i+2])); } $dataLength = bindec($tmp) + $payloadOffset; unset($tmp); } else { $mask = substr($data, 2, 4); $payloadOffset = 6; $dataLength = $payloadLength + $payloadOffset; } if($isMasked === true) { for($i = $payloadOffset; $i < $dataLength; $i++) { $j = $i - $payloadOffset; if(isset($data[$i])) { $unmaskedPayload .= $data[$i] ^ $mask[$j % 4]; } } $decodedData['payload'] = $unmaskedPayload; } else { $payloadOffset = $payloadOffset - 4; $decodedData['payload'] = substr($data, $payloadOffset); } return $decodedData; }}立即学习“PHP免费学习笔记（深入）”；
使用示例：
magento(麦进斗)
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Magento是一套专业开源的PHP电子商务系统。Magento设计得非常灵活，具有模块化架构体系和丰富的功能。易于与第三方应用系统无缝集成。Magento开源网店系统的特点主要分以下几大类，网站管理促销和工具国际化支持SEO搜索引擎优化结账方式运输快递支付方式客户服务用户帐户目录管理目录浏览产品展示分析和报表Magento 1.6 主要包含以下新特性：•持久性购物 - 为不同的
// 使用 WebSocket 通知客户端 $client = new \Common\Library\WebSocketClient(); $client->connect($_SERVER['HTTP_HOST'], 943, '/'); $payload = json_encode(array( 'code' => 'xxx', 'id' => '1' )); $rs = $client->sendData($payload); if( $rs !== true ){ echo "sendData error...\n"; }else{ echo "ok\n"; }立即学习“PHP免费学习笔记（深入）”；
来自： http://my.oschina.net/skq/blog/552923
