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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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<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>获取互联网主机名对应的 IPv4 地址列表</title>
</head>
<body class="docs"><div id="layout">
<div id="layout-content"><div id="function.gethostbynamel" class="refentry">
<div class="refnamediv">
<h1 class="refname">gethostbynamel</h1>
<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">gethostbynamel</span> &mdash; <span class="dc-title">
获取互联网主机名对应的 IPv4 地址列表
</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.gethostbynamel-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>gethostbynamel</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$hostname</code></span>
) : <span class="type">array</span></div>
<p class="para rdfs-comment">
返回互联网主机名 <code class="parameter">hostname</code> 解析出来的 IPv4 地址列表。
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.gethostbynamel-parameters">
<h3 class="title">参数</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">hostname</code></dt>
<dd>
<p class="para">
主机名。
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.gethostbynamel-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
返回 IPv4 地址数组,
或在 <code class="parameter">hostname</code> 无法解析时返回 <strong><code>FALSE</code></strong>
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.gethostbynamel-examples">
<h3 class="title">范例</h3>
<p class="para">
<div class="example" id="example-5486">
<p><strong>Example #1 <span class="function"><strong>gethostbynamel()</strong></span> 例子</strong></p>
<div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$hosts&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">gethostbynamel</span><span style="color: #007700">(</span><span style="color: #DD0000">'www.example.com'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$hosts</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
</div>
<div class="example-contents"><p>以上例程会输出:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
Array
(
[0] =&gt; 192.0.34.166
)
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.gethostbynamel-seealso">
<h3 class="title">参见</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="gethostbyname.html" class="function" rel="rdfs-seeAlso">gethostbyname()</a> - 返回主机名对应的 IPv4地址。</span></li>
<li class="member"><span class="function"><a href="gethostbyaddr.html" class="function" rel="rdfs-seeAlso">gethostbyaddr()</a> - 获取指定的IP地址对应的主机名</span></li>
<li class="member"><span class="function"><a href="checkdnsrr.html" class="function" rel="rdfs-seeAlso">checkdnsrr()</a> - 给指定的主机域名或者IP地址做DNS通信检查</span></li>
<li class="member"><span class="function"><a href="getmxrr.html" class="function" rel="rdfs-seeAlso">getmxrr()</a> - 获取互联网主机名对应的 MX 记录</span></li>
<li class="member">Linux 手册页 <em>named(8)</em></li>
</ul>
</p>
</div>
</div></div></div></body></html>