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docs/php/mb_check_encoding.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>检查字符串在指定的编码里是否有效</title>
</head>
<body class="docs"><div id="layout">
<div id="layout-content"><div id="function.mb-check-encoding" class="refentry">
<div class="refnamediv">
<h1 class="refname">mb_check_encoding</h1>
<p class="verinfo">(PHP 4 &gt;= 4.4.3, PHP 5 &gt;= 5.1.3, PHP 7)</p><p class="refpurpose"><span class="refname">mb_check_encoding</span> &mdash; <span class="dc-title">检查字符串在指定的编码里是否有效</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.mb-check-encoding-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>mb_check_encoding</strong></span>
([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$var</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$encoding</code><span class="initializer"> = mb_internal_encoding()</span></span>
]] ) : <span class="type">bool</span></div>
<p class="para rdfs-comment">
检查指定的字节流在指定的编码里是否有效。它能有效避免所谓的“无效编码攻击（Invalid Encoding Attack）”。
</p>
<p class="para">
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.mb-check-encoding-parameters">
<h3 class="title">参数</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">var</code></dt>
<dd>
<p class="para">
要检查的字节流。如果省略了这个参数，此函数会检查所有来自最初请求所有的输入。
</p>
</dd>
<dt>
<code class="parameter">encoding</code></dt>
<dd>
<p class="para">
期望的编码。
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.mb-check-encoding-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
</p>
</div>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>检查字符串在指定的编码里是否有效</title>
</head>
<body class="docs"><div id="layout">
<div id="layout-content"><div id="function.mb-check-encoding" class="refentry">
<div class="refnamediv">
<h1 class="refname">mb_check_encoding</h1>
<p class="verinfo">(PHP 4 &gt;= 4.4.3, PHP 5 &gt;= 5.1.3, PHP 7)</p><p class="refpurpose"><span class="refname">mb_check_encoding</span> &mdash; <span class="dc-title">检查字符串在指定的编码里是否有效</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.mb-check-encoding-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>mb_check_encoding</strong></span>
([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$var</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$encoding</code><span class="initializer"> = mb_internal_encoding()</span></span>
]] ) : <span class="type">bool</span></div>
<p class="para rdfs-comment">
检查指定的字节流在指定的编码里是否有效。它能有效避免所谓的“无效编码攻击（Invalid Encoding Attack）”。
</p>
<p class="para">
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.mb-check-encoding-parameters">
<h3 class="title">参数</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">var</code></dt>
<dd>
<p class="para">
要检查的字节流。如果省略了这个参数，此函数会检查所有来自最初请求所有的输入。
</p>
</dd>
<dt>
<code class="parameter">encoding</code></dt>
<dd>
<p class="para">
期望的编码。
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.mb-check-encoding-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
</p>
</div>
</div></div></div></body></html>