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<!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>给套接字绑定名字</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.socket-bind" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">socket_bind</h1>
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<p class="verinfo">(PHP 4 >= 4.1.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">socket_bind</span> — <span class="dc-title">给套接字绑定名字</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.socket-bind-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>socket_bind</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$socket</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$address</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$port</code><span class="initializer"> = 0</span></span>
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] ) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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绑定 <code class="parameter">address</code> 到 <code class="parameter">socket</code>。
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该操作必须是在使用 <span class="function"><a href="socket_connect.html" class="function">socket_connect()</a></span> 或者 <span class="function"><a href="socket_listen.html" class="function">socket_listen()</a></span>
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建立一个连接之前。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.socket-bind-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">socket</code></dt>
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<dd>
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<p class="para">
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用 <span class="function"><a href="socket_create.html" class="function">socket_create()</a></span> 创建的一个有效的套接字资源。
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</p>
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</dd>
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<dt>
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<code class="parameter">address</code></dt>
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<dd>
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<p class="para">
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如果套接字是 <strong><code>AF_INET</code></strong> 族，那么
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<code class="parameter">address</code> 必须是一个四点分法的 IP 地址（例如 <em>127.0.0.1</em> ）。
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</p>
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<p class="para">
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如果套接字是 <strong><code>AF_UNIX</code></strong> 族，那么 <code class="parameter">address</code> 是 Unix 套接字一部分（例如 <var class="filename">/tmp/my.sock</var> ）。
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</p>
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</dd>
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<dt>
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<code class="parameter">port</code> （可选）</dt>
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<dd>
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<p class="para">
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参数 <code class="parameter">port</code> 仅仅用于 <strong><code>AF_INET</code></strong>
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套接字连接的时候，并且指定连接中需要监听的端口号。
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.socket-bind-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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<p class="para">
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错误代码会传入 <span class="function"><a href="socket_last_error.html" class="function">socket_last_error()</a></span> ，如果将此参数传入 <span class="function"><a href="socket_strerror.html" class="function">socket_strerror()</a></span>
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则可以得到错误的文字说明。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.socket-bind-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="snmp.get.example.oidarray">
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<p><strong>Example #1 使用 <span class="function"><strong>socket_bind()</strong></span> 来设置套接字资源地址</strong></p>
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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 /></span><span style="color: #FF8000">// Create a new socket<br /></span><span style="color: #0000BB">$sock </span><span style="color: #007700">= </span><span style="color: #0000BB">socket_create</span><span style="color: #007700">(</span><span style="color: #0000BB">AF_INET</span><span style="color: #007700">, </span><span style="color: #0000BB">SOCK_STREAM</span><span style="color: #007700">, </span><span style="color: #0000BB">SOL_TCP</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// An example list of IP addresses owned by the computer<br /></span><span style="color: #0000BB">$sourceips</span><span style="color: #007700">[</span><span style="color: #DD0000">'kevin'</span><span style="color: #007700">] = </span><span style="color: #DD0000">'127.0.0.1'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$sourceips</span><span style="color: #007700">[</span><span style="color: #DD0000">'madcoder'</span><span style="color: #007700">] = </span><span style="color: #DD0000">'127.0.0.2'</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// Bind the source address<br /></span><span style="color: #0000BB">socket_bind</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">, </span><span style="color: #0000BB">$sourceips</span><span style="color: #007700">[</span><span style="color: #DD0000">'madcoder'</span><span style="color: #007700">]);<br /><br /></span><span style="color: #FF8000">// Connect to destination address<br /></span><span style="color: #0000BB">socket_connect</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">, </span><span style="color: #DD0000">'127.0.0.1'</span><span style="color: #007700">, </span><span style="color: #0000BB">80</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Write<br /></span><span style="color: #0000BB">$request </span><span style="color: #007700">= </span><span style="color: #DD0000">'GET / HTTP/1.1' </span><span style="color: #007700">. </span><span style="color: #DD0000">"\r\n" </span><span style="color: #007700">.<br /> </span><span style="color: #DD0000">'Host: example.com' </span><span style="color: #007700">. </span><span style="color: #DD0000">"\r\n\r\n"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">socket_write</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">, </span><span style="color: #0000BB">$request</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Close<br /></span><span style="color: #0000BB">socket_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">);<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>
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</p>
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</div>
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<div class="refsect1 notes" id="refsect1-function.socket-bind-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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该函数必须在 <span class="function"><a href="socket_connect.html" class="function">socket_connect()</a></span> 之前使用。
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</p>
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</p></blockquote>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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Windows 9x/ME 兼容性注意点:
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如果尝试绑定套接字资源到一个错误的地址，而这个地址不是本机的地址，那么 <span class="function"><a href="socket_last_error.html" class="function">socket_last_error()</a></span> 可能会返回一个无效的错误代码。
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.socket-bind-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="socket_connect.html" class="function" rel="rdfs-seeAlso">socket_connect()</a> - 开启一个套接字连接</span></li>
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<li class="member"><span class="function"><a href="socket_listen.html" class="function" rel="rdfs-seeAlso">socket_listen()</a> - Listens for a connection on a socket</span></li>
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<li class="member"><span class="function"><a href="socket_create.html" class="function" rel="rdfs-seeAlso">socket_create()</a> - 创建一个套接字（通讯节点）</span></li>
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<li class="member"><span class="function"><a href="socket_last_error.html" class="function" rel="rdfs-seeAlso">socket_last_error()</a> - Returns the last error on the socket</span></li>
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<li class="member"><span class="function"><a href="socket_strerror.html" class="function" rel="rdfs-seeAlso">socket_strerror()</a> - Return a string describing a socket error</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |