Heim > Backend-Entwicklung > PHP-Tutorial > PHP的socket连接到服务端模版,socket服务端_PHP教程

PHP的socket连接到服务端模版,socket服务端_PHP教程

WBOY
Freigeben: 2016-07-13 10:18:48
Original
784 Leute haben es durchsucht

PHP的socket连接到服务端模版,socket服务端

在整理新框架的时候,发现对于一些缓存数据,需要对外的接口访问,而比较方便的是php的接口,所以临时研究了下php如何连接java服务端。

先贴上代码:
  1. <span class="pun"></span><span class="pln">php</span>
  2. <span class="pln">require_once </span><span class="str">'CRC16.php'</span><span class="pun">;</span>
  3. <span class="com">/*-----------------------------</span>
  4. <span class="com"> | 向服务器发送数据包</span>
  5. <span class="com"> ------------------------------*/</span>
  6. <span class="kwd">class</span><span class="typ">Server</span><span class="pun">{</span>
  7. <span class="com">//发送数据包</span>
  8. <span class="kwd">public</span><span class="kwd">static</span><span class="kwd">function</span><span class="pln"> sendPacket</span><span class="pun">(</span><span class="pln">$packet</span><span class="pun">,</span><span class="pln"> $host</span><span class="pun">,</span><span class="pln"> $port</span><span class="pun">)</span><span class="pun">{</span>
  9. <span class="pln"> $protocol </span><span class="pun">=</span><span class="str">'tcp'</span><span class="pun">;</span>
  10. <span class="pln"> $get_prot </span><span class="pun">=</span><span class="pln"> getprotobyname </span><span class="pun">(</span><span class="pln"> $protocol </span><span class="pun">);</span>
  11. <span class="com">//创建socket</span>
  12. <span class="pln"> $socket </span><span class="pun">=</span><span class="pln"> socket_create </span><span class="pun">(</span><span class="pln"> AF_INET</span><span class="pun">,</span><span class="pln"> SOCK_STREAM</span><span class="pun">,</span><span class="pln"> $get_prot </span><span class="pun">);</span>
  13. <span class="com">//建立连接</span>
  14. <span class="pln"> $conn </span><span class="pun">=</span><span class="pln"> socket_connect </span><span class="pun">(</span><span class="pln"> $socket</span><span class="pun">,</span><span class="pln"> $host</span><span class="pun">,</span><span class="pln"> $port </span><span class="pun">);</span>
  15. <span class="kwd">if</span><span class="pun">(!</span><span class="pln">$conn</span><span class="pun">){</span>
  16. <span class="pln"> socket_close</span><span class="pun">(</span><span class="pln">$socket</span><span class="pun">);</span>
  17. <span class="kwd">exit</span><span class="pun">(</span><span class="str">"socket connect failed!"</span><span class="pun">);</span>
  18. <span class="pun">}</span>
  19. <span class="pln"> $buffer </span><span class="pun">=</span><span class="lit">@socket_read</span><span class="pun">(</span><span class="pln">$socket</span><span class="pun">,</span><span class="lit">9</span><span class="pun">,</span><span class="pln"> PHP_NORMAL_READ</span><span class="pun">);</span>
  20. <span class="pln"> $crcCode </span><span class="pun">=</span><span class="pun">(</span><span class="pln">ord</span><span class="pun">(</span><span class="pln">$buffer</span><span class="pun">[</span><span class="lit">7</span><span class="pun">])<span class="lit">8</span><span class="pun">)+</span><span class="pln">ord</span><span class="pun">(</span><span class="pln">$buffer</span><span class="pun">[</span><span class="lit">8</span><span class="pun">]);</span></span>
  21. <span class="pln"> $len </span><span class="pun">=</span><span class="pln"> strlen</span><span class="pun">(</span><span class="pln">$packet</span><span class="pun">);</span>
  22. <span class="pln"> $newpacket </span><span class="pun">=</span><span class="pln"> CRC16</span><span class="pun">::</span><span class="pln">encode</span><span class="pun">(</span><span class="pln">$packet</span><span class="pun">,</span><span class="pln"> $crcCode</span><span class="pun">,</span><span class="lit">4</span><span class="pun">);</span>
  23. <span class="pln"> socket_send </span><span class="pun">(</span><span class="pln"> $socket</span><span class="pun">,</span><span class="pln"> $newpacket</span><span class="pun">,</span><span class="pln"> $len</span><span class="pun">,</span><span class="lit">0</span><span class="pun">);</span>
  24. <span class="com">//等待接受</span>
  25. <span class="pln"> $head </span><span class="pun">=</span><span class="lit">@socket_read</span><span class="pun">(</span><span class="pln">$socket</span><span class="pun">,</span><span class="lit">4</span><span class="pun">,</span><span class="pln">PHP_NORMAL_READ</span><span class="pun">);</span>
  26. <span class="pln"> $len </span><span class="pun">=</span><span class="pun">(</span><span class="pln">ord</span><span class="pun">(</span><span class="pln">$head</span><span class="pun">[</span><span class="lit">0</span><span class="pun">])<span class="lit">24</span><span class="pun">)+(</span><span class="pln">ord</span><span class="pun">(</span><span class="pln">$head</span><span class="pun">[</span><span class="lit">1</span><span class="pun">])<span class="lit">16</span><span class="pun">)+(</span><span class="pln">ord</span><span class="pun">(</span><span class="pln">$head</span><span class="pun">[</span><span class="lit">2</span><span class="pun">])<span class="lit">8</span><span class="pun">)+</span><span class="pln">ord</span><span class="pun">(</span><span class="pln">$head</span><span class="pun">[</span><span class="lit">3</span><span class="pun">]);</span></span></span></span>
  27. <span class="pln"> $content </span><span class="pun">=</span><span class="lit">@socket_read</span><span class="pun">(</span><span class="pln">$socket</span><span class="pun">,</span><span class="pln">$len</span><span class="pun">-</span><span class="lit">4</span><span class="pun">,</span><span class="pln">PHP_NORMAL_READ</span><span class="pun">);</span>
  28. <span class="pln"> socket_close </span><span class="pun">(</span><span class="pln"> $socket </span><span class="pun">);</span>
  29. <span class="kwd">return</span><span class="pln"> substr</span><span class="pun">(</span><span class="pln">$content</span><span class="pun">,</span><span class="lit">3</span><span class="pun">);</span>
  30. <span class="pun">}</span>
  31. <span class="kwd">public</span><span class="kwd">static</span><span class="kwd">function</span><span class="pln"> packet</span><span class="pun">(</span><span class="pln">$group</span><span class="pun">,</span><span class="pln">$cmd</span><span class="pun">,</span><span class="pln">$message</span><span class="pun">){</span>
  32. <span class="pln"> $size </span><span class="pun">=</span><span class="pln"> strlen</span><span class="pun">(</span><span class="pln">$message</span><span class="pun">)+</span><span class="lit">8</span><span class="pun">;</span>
  33. <span class="pln"> $str </span><span class="pun">=</span><span class="str">''</span><span class="pun">;</span>
  34. <span class="pln"> $str </span><span class="pun">.=</span><span class="kwd">self</span><span class="pun">::</span><span class="pln">writeInt</span><span class="pun">(</span><span class="pln">$size</span><span class="pun">);</span>
  35. <span class="pln"> $str </span><span class="pun">.=</span><span class="kwd">self</span><span class="pun">::</span><span class="pln">writeByte</span><span class="pun">(</span><span class="lit">0</span><span class="pun">);</span>
  36. <span class="pln"> $str </span><span class="pun">.=</span><span class="kwd">self</span><span class="pun">::</span><span class="pln">writeByte</span><span class="pun">(</span><span class="pln">$group</span><span class="pun">);</span>
  37. <span class="pln"> $str </span><span class="pun">.=</span><span class="kwd">self</span><span class="pun">::</span><span class="pln">writeByte</span><span class="pun">(</span><span class="pln">$cmd</span><span class="pun">);</span>
  38. <span class="pln"> $str </span><span class="pun">.=</span><span class="kwd">self</span><span class="pun">::</span><span class="pln">writeByte</span><span class="pun">(</span><span class="lit">1</span><span class="pun">);</span>
  39. <span class="pln"> $str </span><span class="pun">.=</span><span class="pln"> $message</span><span class="pun">;</span>
  40. <span class="kwd">return</span><span class="pln"> $str</span><span class="pun">;</span>
  41. <span class="pun">}</span>
  42. <span class="com">//写进2个byte的数据</span>
  43. <span class="kwd">private</span><span class="kwd">static</span><span class="kwd">function</span><span class="pln"> writeShort</span><span class="pun">(</span><span class="pln">$s</span><span class="pun">)</span><span class="pun">{</span>
  44. <span class="kwd">return</span><span class="pln"> pack </span><span class="pun">(</span><span class="str">"n"</span><span class="pun">,</span><span class="pln"> $s </span><span class="pun">);</span>
  45. <span class="pun">}</span>
  46. <span class="com">//写进4个byte的数据</span>
  47. <span class="kwd">private</span><span class="kwd">static</span><span class="kwd">function</span><span class="pln"> writeInt</span><span class="pun">(</span><span class="pln">$N</span><span class="pun">)</span><span class="pun">{</span>
  48. <span class="kwd">return</span><span class="pln"> pack </span><span class="pun">(</span><span class="str">"N"</span><span class="pun">,</span><span class="pln"> $N </span><span class="pun">);</span>
  49. <span class="pun">}</span>
  50. <span class="com">//写进1个byte的数据</span>
  51. <span class="kwd">private</span><span class="kwd">static</span><span class="kwd">function</span><span class="pln"> writeByte</span><span class="pun">(</span><span class="pln">$b</span><span class="pun">)</span><span class="pun">{</span>
  52. <span class="kwd">return</span><span class="pln"> pack </span><span class="pun">(</span><span class="str">"c"</span><span class="pun">,</span><span class="pln"> $b </span><span class="pun">);</span>
  53. <span class="pun">}</span>
  54. <span class="pun">}</span>
因为个人服务端连接之后,会分配一个crcCode校验码,发送的消息需要进行crc16的加密(其实很简单的,保持点神秘感),所以先等待接受固定长度来获得crcCode,然后发送请求后,等待接受数据包,并返回。



来自为知笔记(Wiz)



PHP的Socket怎进行服务端与客户端的相互通信?

服务器提供数据缓冲区,并提供一种用户识别机制。以此来给聊天用户双方发送相应的信息。
看似用户与用户之间的通信实质上是用户在与服务器通信。
我的一点理解
 

php socket连接不上

查一下端口把
 

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/880092.htmlTechArticlePHP的socket连接到服务端模版,socket服务端 在整理新框架的时候,发现对于一些缓存数据,需要对外的接口访问,而比较方便的是php的接口,...
Verwandte Etiketten:
Quelle:php.cn
Erklärung dieser Website
Der Inhalt dieses Artikels wird freiwillig von Internetnutzern beigesteuert und das Urheberrecht liegt beim ursprünglichen Autor. Diese Website übernimmt keine entsprechende rechtliche Verantwortung. Wenn Sie Inhalte finden, bei denen der Verdacht eines Plagiats oder einer Rechtsverletzung besteht, wenden Sie sich bitte an admin@php.cn
Beliebte Tutorials
Mehr>
Neueste Downloads
Mehr>
Web-Effekte
Quellcode der Website
Website-Materialien
Frontend-Vorlage