phpsocket 简单的php socket 实例

server：

<span> 1</span> <span>php
</span><span> 2</span><span>set_time_limit</span>(0<span>);
</span><span> 3</span><span> 4</span><span>$ip</span> = '127.0.0.1'<span>;
</span><span> 5</span><span>$port</span> = 8888<span>;
</span><span> 6</span><span> 7</span><span>//</span><span> 1. 创建</span><span> 8</span><span>if</span>( (<span>$sock</span> = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) == <span>FALSE</span><span> ){
</span><span> 9</span><span>echo</span> 'create fail：' .<span> socket_strerror(socket_last_error());
</span><span>10</span><span>}
</span><span>11</span><span>12</span><span>//</span><span> 2. 绑定</span><span>13</span><span>if</span> ( socket_bind(<span>$sock</span>, <span>$ip</span>, <span>$port</span>) == <span>FALSE</span><span> ) {
</span><span>14</span><span>echo</span> 'bind fail：' .<span> socket_strerror(socket_last_error());
</span><span>15</span><span>}
</span><span>16</span><span>17</span><span>//</span><span> 3. 监听</span><span>18</span><span>if</span>( socket_listen(<span>$sock</span>, 4) == <span>FALSE</span><span> ){
</span><span>19</span><span>echo</span> 'listen fail：' .<span> socket_strerror(socket_last_error());
</span><span>20</span><span>}
</span><span>21</span><span>22</span><span>$count</span> = 0<span>;
</span><span>23</span><span>24</span><span>do</span><span>{
</span><span>25</span><span>//</span><span> 4. 阻塞，等待客户端请求</span><span>26</span><span>if</span> ( (<span>$msgsock</span> = socket_accept(<span>$sock</span>)) == <span>FALSE</span><span> ) {
</span><span>27</span><span>28</span><span>echo</span> 'accept fail：' .<span> socket_strerror(socket_last_error());
</span><span>29</span><span>30</span><span>break</span><span>;
</span><span>31</span>     } <span>else</span><span> {
</span><span>32</span><span>33</span><span>//</span><span> 5. 向客户端写入信息</span><span>34</span><span>$msg</span> = 'server send successfully!'<span>;
</span><span>35</span>         socket_write(<span>$msgsock</span>, <span>$msg</span>, <span>strlen</span>(<span>$msg</span><span>));
</span><span>36</span><span>37</span><span>38</span><span>//</span><span> 5. 读取客户端信息</span><span>39</span><span>echo</span> '-----test successfully!------'<span>;
</span><span>40</span><span>$buf</span> = socket_read(<span>$msgsock</span>, 8192<span>);
</span><span>41</span><span>42</span><span>43</span><span>$talkback</span> = 'receive client: ' . <span>$buf</span><span>;
</span><span>44</span><span>echo</span><span>$talkback</span><span>;
</span><span>45</span><span>46</span><span>47</span><span>if</span> (<span>$count</span> >= 5<span>) {
</span><span>48</span><span>break</span><span>;
</span><span>49</span><span>        }
</span><span>50</span><span>    }
</span><span>51</span><span>52</span><span>//</span><span> 6. 关闭socket</span><span>53</span>     socket_close(<span>$msgsock</span><span>);
</span><span>54</span><span>55</span> }<span>while</span>(<span>true</span><span>);
</span><span>56</span><span>57</span><span>//</span><span> 6. 关闭socket</span><span>58</span> socket_close(<span>$sock</span>);

client：

<span>php
</span><span>error_reporting</span>(<span>E_ALL</span><span>);
</span><span>set_time_limit</span>(0<span>);


</span><span>$ip</span> = '127.0.0.1'<span>;
</span><span>$port</span> = 8888<span>;

</span><span>//</span><span> 1. 创建</span><span>$socket</span> = socket_create(AF_INET, SOCK_STREAM,<span> SOL_TCP);

</span><span>if</span>( <span>$socket</span> == <span>FALSE</span><span> ) {
    </span><span>echo</span> 'create fail: ' .<span> socket_strerror(socket_last_error());
} </span><span>else</span><span> {
    </span><span>echo</span> 'OK'<span>;
}

</span><span>//</span><span> 2. 链接</span><span>echo</span> 'we will try to connect ' . <span>$ip</span> .':' . <span>$port</span> . '\r\n----'<span>;
</span><span>$result</span> = socket_connect(<span>$socket</span>, <span>$ip</span>, <span>$port</span><span>);
</span><span>if</span> ( <span>$result</span> == <span>FALSE</span><span>) {
    
}

</span><span>$in</span> = 'HO '<span>;
</span><span>$in</span> .= 'first blood--------'<span>;
</span><span>$out</span> = ''<span>;

</span><span>//</span><span> 3. 向服务端写入</span><span>if</span>( !socket_write(<span>$socket</span>, <span>$in</span>, <span>strlen</span>(<span>$in</span><span>)) ) {
    </span><span>echo</span> 'write fail: ' .<span> socket_strerror(socket_last_error());
} </span><span>else</span><span> {
    </span><span>echo</span> '-----send to server succefully! \r\n----'<span>;
    </span><span>echo</span> 'the content is ' . <span>$in</span><span>;
}

</span><span>//</span><span> 3. 从服务端读取</span><span>while</span> ( <span>$out</span> = socket_read(<span>$socket</span>, 8129<span>) ) {
    </span><span>echo</span> '-----receive from server succefully!\r\n------'<span>;
    </span><span>echo</span> 'the contents is ' . <span>$out</span><span>;
}

</span><span>//</span><span> 4. 关闭</span><span>echo</span> '----close socket ...'<span>;
socket_close(</span><span>$socket</span><span>);
</span><span>echo</span> 'closed ok.';

 

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