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106 lines
3.5 KiB
HTML
106 lines
3.5 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>将长整型转化为字符串形式带点的互联网标准格式地址（IPV4）</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.long2ip" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">long2ip</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">long2ip</span> — <span class="dc-title">将长整型转化为字符串形式带点的互联网标准格式地址（IPV4）</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.long2ip-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>long2ip</strong></span>
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( <span class="methodparam"><span class="type">int</span> <code class="parameter">$proper_address</code></span>
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) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>long2ip()</strong></span> 函数通过长整型的表达形式转化生成带点格式的互联网地址（例如：aaa.bbb.ccc.ddd ）。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.long2ip-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">proper_address</code></dt>
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<dd>
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<p class="para">
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合格的地址，长整型的表达形式。
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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.long2ip-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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返回字符串的互联网 IP 地址。
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</p>
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</div>
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<div class="refsect1 changelog" id="refsect1-function.long2ip-changelog">
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<h3 class="title">更新日志</h3>
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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>7.1.0</td>
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<td>
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参数 <code class="parameter">proper_address</code> 的类型从 <span class="type"><a href="language.types.string.html" class="type string">string</a></span> 改成 <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>。
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="refsect1 notes" id="refsect1-function.long2ip-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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在 32 位架构中，从 <span class="type"><a href="language.types.string.html" class="type string">string</a></span> 转换 <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span> 整型形式的 ip 地址将有可能导致错误的结果，因为结果数字超出了 <strong><code>PHP_INT_MAX</code></strong> 限制。
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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.long2ip-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="ip2long.html" class="function" rel="rdfs-seeAlso">ip2long()</a> - 将 IPV4 的字符串互联网协议转换成长整型数字</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> |