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docs/php/idn_to_utf8.html
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docs/php/idn_to_utf8.html
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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>Convert domain name from IDNA ASCII to Unicode</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.idn-to-utf8" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">idn_to_utf8</h1>
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<p class="verinfo">(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.2, PECL idn >= 0.1)</p><p class="refpurpose"><span class="refname">idn_to_utf8</span> — <span class="dc-title">Convert domain name from IDNA ASCII to Unicode</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.idn-to-utf8-description">
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<h3 class="title">说明</h3>
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<p class="para">过程化风格</p>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>idn_to_utf8</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$domain</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$options</code><span class="initializer"> = IDNA_DEFAULT</span></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$variant</code><span class="initializer"> = INTL_IDNA_VARIANT_UTS46</span></span>
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[, <span class="methodparam"><span class="type">array</span> <code class="parameter reference">&$idna_info</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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This function converts a Unicode domain name from an IDNA ASCII-compatible format to plain Unicode, encoded in UTF-8.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.idn-to-utf8-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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Domain to convert in an IDNA ASCII-compatible format.
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</p>
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</dd>
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<dt>
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<code class="parameter">options</code></dt>
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<dd>
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<p class="para">
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Conversion options - combination of IDNA_* constants
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(except IDNA_ERROR_* constants).
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</p>
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</dd>
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<dt>
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<code class="parameter">variant</code></dt>
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<dd>
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<p class="para">
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Either <strong><code>INTL_IDNA_VARIANT_2003</code></strong> for IDNA 2003 or
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<strong><code>INTL_IDNA_VARIANT_UTS46</code></strong> for UTS #46.
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</p>
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</dd>
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<dt>
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<code class="parameter">idna_info</code></dt>
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<dd>
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<p class="para">
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This parameter can be used only if
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<strong><code>INTL_IDNA_VARIANT_UTS46</code></strong> was used for
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<code class="parameter">variant</code>. In that case, it will be filled with an
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array with the keys <em>'result'</em>, the possibly illegal
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result of the transformation,
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<em>'isTransitionalDifferent'</em>, a boolean indicating
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whether the usage of the transitional mechanisms of UTS #46 either has
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or would have changed the result and <em>'errors'</em>,
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which is an <span class="type"><a href="language.types.integer.html" class="type int">int</a></span> representing a bitset of the error
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constants IDNA_ERROR_*.
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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.idn-to-utf8-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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The domain name in Unicode, encoded in UTF-8, 或者在失败时返回 <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.idn-to-utf8-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>7.4.0</td>
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<td>
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The default value of <code class="parameter">variant</code> is now
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<strong><code>INTL_IDNA_VARIANT_UTS46</code></strong> instead of the deprecated
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<strong><code>INTL_IDNA_VARIANT_2003</code></strong>.
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</td>
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</tr>
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<tr>
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<td>7.2.0</td>
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<td>
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<strong><code>INTL_IDNA_VARIANT_2003</code></strong> has been deprecated; use
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<strong><code>INTL_IDNA_VARIANT_UTS46</code></strong> instead.
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</td>
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</tr>
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<tr>
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<td>5.4.0/PECL 2.0.0b1</td>
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<td>
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Added the parameters <code class="parameter">variant</code> and
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<code class="parameter">idna_info</code>; UTS #46 support (requires ICU ≥ 4.6).
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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.idn-to-utf8-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-3103">
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<p><strong>Example #1 <span class="function"><strong>idn_to_utf8()</strong></span> example</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 /><br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">idn_to_utf8</span><span style="color: #007700">(</span><span style="color: #DD0000">'xn--tst-qla.de'</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 class="para">以上例程会输出：</p>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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täst.de
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</pre></div>
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</div>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.idn-to-utf8-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="idn_to_ascii.html" class="function" rel="rdfs-seeAlso">idn_to_ascii()</a> - Convert domain name to IDNA ASCII form</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>
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