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160 lines
8.7 KiB
HTML
160 lines
8.7 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>创建一对完全一样的网络套接字连接流</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.stream-socket-pair" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">stream_socket_pair</h1>
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<p class="verinfo">(PHP 5 >= 5.1.0, PHP 7)</p><p class="refpurpose"><span class="refname">stream_socket_pair</span> — <span class="dc-title">
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创建一对完全一样的网络套接字连接流
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.stream-socket-pair-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>stream_socket_pair</strong></span>
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( <span class="methodparam"><span class="type">int</span> <code class="parameter">$domain</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$type</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$protocol</code></span>
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) : <span class="type">array</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>stream_socket_pair()</strong></span> 创建一对完全一样的网络套接字连接，这个函数通常会被用在进程间通信(Inter-Process Communication)
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.stream-socket-pair-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">domain</code></dt>
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<dd>
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<p class="para">
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使用的协议族： <strong><code>STREAM_PF_INET</code></strong>,
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<strong><code>STREAM_PF_INET6</code></strong> or
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<strong><code>STREAM_PF_UNIX</code></strong>
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</p>
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</dd>
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<dt>
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<code class="parameter">type</code></dt>
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<dd>
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<p class="para">
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通信类型:
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<strong><code>STREAM_SOCK_DGRAM</code></strong>,
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<strong><code>STREAM_SOCK_RAW</code></strong>,
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<strong><code>STREAM_SOCK_RDM</code></strong>,
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<strong><code>STREAM_SOCK_SEQPACKET</code></strong> or
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<strong><code>STREAM_SOCK_STREAM</code></strong>
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</p>
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</dd>
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<dt>
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<code class="parameter">protocol</code></dt>
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<dd>
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<p class="para">
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使用的传输协议: <strong><code>STREAM_IPPROTO_ICMP</code></strong>,
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<strong><code>STREAM_IPPROTO_IP</code></strong>,
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<strong><code>STREAM_IPPROTO_RAW</code></strong>,
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<strong><code>STREAM_IPPROTO_TCP</code></strong> or
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<strong><code>STREAM_IPPROTO_UDP</code></strong>
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</p>
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</dd>
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</dl>
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<span class="simpara">
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Please consult the <a href="stream.constants.html" class="link">Streams constant
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list</a> for further details on each constant.
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</span>
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</p></blockquote>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.stream-socket-pair-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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如果成功将返回一个<span class="type"><span class="type 数组">数组</span></span>包括了两个socket资源，错误时返回<strong><code>FALSE</code></strong>
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</p>
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</div>
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<div class="refsect1 changelog" id="refsect1-function.stream-socket-pair-changelog">
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<h3 class="title">更新日志</h3>
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<p class="para">
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<table class="doctable informaltable">
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<thead>
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<tr>
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<th>版本</th>
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<th>说明</th>
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</tr>
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</thead>
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<tbody class="tbody">
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<tr>
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<td>5.3.0</td>
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<td>
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这个函数在windows平台不可用
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</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.stream-socket-pair-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-4839">
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<p><strong>Example #1 A <span class="function"><strong>stream_socket_pair()</strong></span> example</strong></p>
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<div class="example-contents"><p>
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This example shows the basic usage of
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<span class="function"><strong>stream_socket_pair()</strong></span> in Inter-Process Comunication.
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</p></div>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /><br />$sockets </span><span style="color: #007700">= </span><span style="color: #0000BB">stream_socket_pair</span><span style="color: #007700">(</span><span style="color: #0000BB">STREAM_PF_UNIX</span><span style="color: #007700">, </span><span style="color: #0000BB">STREAM_SOCK_STREAM</span><span style="color: #007700">, </span><span style="color: #0000BB">STREAM_IPPROTO_IP</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$pid </span><span style="color: #007700">= </span><span style="color: #0000BB">pcntl_fork</span><span style="color: #007700">();<br /><br />if (</span><span style="color: #0000BB">$pid </span><span style="color: #007700">== -</span><span style="color: #0000BB">1</span><span style="color: #007700">) {<br /> die(</span><span style="color: #DD0000">'could not fork'</span><span style="color: #007700">);<br /><br />} else if (</span><span style="color: #0000BB">$pid</span><span style="color: #007700">) {<br /> </span><span style="color: #FF8000">/* parent */<br /> </span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$sockets</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">]);<br /><br /> </span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$sockets</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">], </span><span style="color: #DD0000">"child PID: </span><span style="color: #0000BB">$pid</span><span style="color: #DD0000">\n"</span><span style="color: #007700">);<br /> echo </span><span style="color: #0000BB">fgets</span><span style="color: #007700">(</span><span style="color: #0000BB">$sockets</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">]);<br /><br /> </span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$sockets</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">]);<br /><br />} else {<br /> </span><span style="color: #FF8000">/* child */<br /> </span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$sockets</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">]);<br /><br /> </span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$sockets</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">], </span><span style="color: #DD0000">"message from child\n"</span><span style="color: #007700">);<br /> echo </span><span style="color: #0000BB">fgets</span><span style="color: #007700">(</span><span style="color: #0000BB">$sockets</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">]);<br /><br /> </span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$sockets</span><span style="color: #007700">[</span><span style="color: #0000BB">0</span><span style="color: #007700">]);<br />}<br /><br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents"><p>以上例程的输出类似于：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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child PID: 1378
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message from child
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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</div></div></div></body></html> |