php与客户端通信.doc

php与客户端通信用php的socket跟flash的socket通信时间:2009-10-27 15:26:18来源:网络 作者:未知 点击:1343次 关于socket不多说了,这个网上的资料很多,关于flash的资料也很多,这里只说在网上找不到资料或者资料很少的哦东西php的socket资料可谓少之又少,光是在google上搜php socket,出来的结果页就是那么三四篇文章,点进关于socket不多说了,这个网上的资料很多,关于flash的资料也很多,这里只说在网上找不到资料或者资料很少的哦东西 php的socket资料可谓少之又少,光是在google上搜php socket,出来的结果页就是那么三四篇文章,点进去看看,基本都是从手册上抄下来的,一点问题都起不了,以至于我花了两天时间才使php和flash成功通信,呵呵其实,php和flash的socket通信不是问题的难点,难点在于flash的安全策略,特别是socket,特别是在flash player 10中要求更加严格.下面分几个部分来说:php的socketflash的socketflash的安全策略怎么用php解决这个策略希望对缺乏资料的人有所帮助,如果你用的其他后台语言与flash交互,可能比php简单,因为php的确不是个做socket的好东西,但是或许某个时刻你就会用到这个(1)php的socket:先贴一段代码,就是我实现通信的程序中的代码: 1. ?php 2. set_time_limit(0); 3. $address = ; 4. ob_implicit_flush(); 5. /* 6. * Created on 2009-9-14 7. * 8. * To change the template for this generated file go to 9. * Window - Preferences - PHPeclipse - PHP - Code Templates 10. */ 11. 12. $port = 8083; 13. 14. if ($sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP) 0) 15. echo socket_create() failed: reason: . socket_strerror($sock) . n; 16. 17. 18. if ($ret = socket_bind($sock, $address, $port) 0) 19. echo socket_bind() failed: reason: . socket_strerror($ret) . n; 20. 21. 22. if ($ret = socket_listen($sock, 5) 0) 23. echo socket_listen() failed: reason: . socket_strerror($ret) . n; 24. 25. do 26. if (!($msgsock = socket_accept($sock) 27. echo socket_accept() failed: reason: . socket_strerror($msgsock) . n; 28. break; 29. 30. /* 开始接受socket传过来的数据s. */ 31. 32. do 33. 34. /如果是安全策略请求,则传输安全策略文件内容 35. if($buf = socket_read($msgsock, 2048) 36. if(strpos($buf,policy-file-request) 37. $msg =; 38. socket_write($msgsock, $msg.0, strlen($msg.0); 39. 40. 41. /答复数据 42. 43. $talkback = PHP: You said $buf.n; 44. socket_write($msgsock, $talkback, strlen($talkback); 45. 46. 47. 48. while (true); 49. socket_close($msgsock); 50. while (true); 51. /socket_close($spawn); 52. /socket_close($socket); 53. ?(2)flash的socket通信: flash的socket通信也是资料比较多,直接贴代码 1. package 2. 3. import fl.controls.TextArea; 4. import fl.core.UIComponent; 5. 6. import flash.events.*; 7. import .Socket; 8. import flash.system.*; 9. import flash.utils.ByteArray; 10. import flash.utils.setTimeout; 11. /* 12. * . 13. * author DefaultUser (Tools - Custom Arguments.) 14. */ 15. public class CustomSocket 16. 17. private const CR:int = 13; / Carriage Return (CR) 18. private const WILL:int = 0xFB; / 251 - WILL (option code) 19. private const WONT:int = 0xFC; / 252 - WONT (option code) 20. private const DO:int = 0xFD; / 253 - DO (option code) 21. private const DONT:int = 0xFE; / 254 - DONT (option code) 22. private const IAC:int = 0xFF; / 255 - Interpret as Command (IAC) 23. 24. private var serverURL:String; 25. private var portNumber:int; 26. private var socket:Socket; 27. private var ta:TextArea; 28. private var state:int = 0; 29. System.useCodePage = false; 30. public function CustomSocket(server:String, port:int, output:TextArea) 31. 32. serverURL = server; 33. portNumber = port; 34. ta = output; 35. socket = new Socket(); 36. socket.addEventListener(Event.CONNECT, connectHandler); 37. socket.addEventListener(Event.CLOSE, closeHandler); 38. socket.addEventListener(ErrorEvent.ERROR, errorHandler); 39. socket.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler); 40. socket.addEventListener(ProgressEvent.SOCKET_DATA, dataHandler); 41. 42. / Security.loadPolicyFile(xmlsocket:/ + serverURL + :+portNumber); 43. 44. try 45. 46. msg(Trying to connect to + serverURL + : + portNumber + n); 47. socket.connect(serverURL,portNumber); 48. 49. catch (error:Error) 50. 51. msg(error.message + n); 52. / socket.close(); 53. 54. 55. public function ioErrorHandler(event:IOErrorEvent):void 56. 57. msg(Unable to connect: socket error.n); 58. 59. public function writeBytesToSocket():void 60. socket.writeUTFBytes(sssssssssssssssssssss); 61. socket.flush(); 62. 63. private function connectHandler(event:Event):void 64. if (socket.connected) 65. msg(connected.n); 66. 67. else 68. msg(unable to connectn); 69. 70. 71. private function closeHandler(event:Event):void 72. 73. msg(closed.n); 74. 75. private function errorHandler(event:ErrorEvent):void 76. msg(event.text + n); 77. 78. private function dataHandler(event:ProgressEvent):void 79. while ( socket.bytesAvailable ) 80. / Read a byte from the socket and display it 81. var data = socket.readUTFBytes(socket.bytesAvailable); 82. ta.text+=data; 83. 84. 85. private function msg(value:String):void 86. ta.text += value; 87. ta.dispatchEvent(new Event(Event.CHANGE); 88. setTimeout(setScroll, 100); 89. 90. public function setScroll():void 91. ta.verticalScrollPosition = ta.maxVerticalScrollPosition; 92. 93. public function closeSocket():void 94. socket.close(); 95. 96. public function sendM(e:String):void 97. 98. socket.writeUTFBytes(e); 99. socket.flush();100. 101. 102.103. (3).安全策略flash的安全策略是很严格的,特别是在flash 10中,当使用socket的时候必须存在策略文件才能继续传输数据,这个文件以前可以直接存放在根目录即可,而现在要求必须在socket中直接传输才行,默认情况下flash会在服务器的843端口寻找这个策略文件的传输socket,可是php中开多个端口传输很有问题,不能实现多线程是主要问题,所以这个方法不太好,也不太直接,其实还有一个非常直接的方法,就是不用任何端口或者开辟其他通信,flash在向某个端口请求数据的时候,第一次会发送一个字符串,如果服务器收到这个字符窜,直接回复一个策略文件格式的字符串,即可通过安全验证,然后就可以传输数据了,我做过实验,的确可以通信了,但是因为是php,一直执行某个网页才能监听socket,所以不能放在服务器上给大家来测试,如果感兴趣可以找我探讨:qq:676588498; 1. if($buf = socket_read($msgsock, 2048) 2. if(strpos($buf,policy-file-request) 3. $msg =; 4. socket_write($msgsock, $msg.0, strlen($msg.0); 5. 6. 7. /答复数据 8. 9. $ta