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141 lines
5.8 KiB
HTML
141 lines
5.8 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>返回一个字符串缓冲区的信息</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.finfo-buffer" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">finfo_buffer</h1>
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<h1 class="refname">finfo::buffer</h1>
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<p class="verinfo">(PHP 5 >= 5.3.0, PHP 7, PECL fileinfo >= 0.1.0)</p><p class="refpurpose"><span class="refname">finfo_buffer</span> -- <span class="refname">finfo::buffer</span> — <span class="dc-title">返回一个字符串缓冲区的信息</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.finfo-buffer-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"><a href="finfo.buffer.html" class="methodname">finfo_buffer</a></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$finfo</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$string</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$options</code><span class="initializer"> = FILEINFO_NONE</span></span>
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[, <span class="methodparam"><span class="type">resource</span> <code class="parameter">$context</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
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]] ) : <span class="type">string</span></div>
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<p class="para rdfs-comment">面向对象风格</p>
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<div class="methodsynopsis dc-description">
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<span class="modifier">public</span> <span class="methodname"><a href="finfo.buffer.html" class="methodname">finfo::buffer</a></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$string</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$options</code><span class="initializer"> = FILEINFO_NONE</span></span>
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[, <span class="methodparam"><span class="type">resource</span> <code class="parameter">$context</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
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]] ) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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本函数用来获取字符串中二进制数据的信息。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.finfo-buffer-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">finfo</code></dt>
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<dd>
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<p class="para">
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<span class="function"><a href="finfo_open.html" class="function">finfo_open()</a></span> 函数返回的 Fileinfo 资源。
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</p>
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</dd>
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<dt>
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<code class="parameter">string</code></dt>
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<dd>
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<p class="para">
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要检查的文件内容。
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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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一个 <a href="fileinfo.constants.html" class="link">Fileinfo
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常量 </a> 或多个 <a href="fileinfo.constants.html" class="link">Fileinfo 常量 </a> 进行逻辑或运算。
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</p>
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</dd>
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<dt>
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<code class="parameter">context</code></dt>
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<dd>
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<p class="para">
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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.finfo-buffer-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 <code class="parameter">string</code> 参数所指定内容的类型描述。
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发生错误时返回 <strong><code>FALSE</code></strong> 。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.finfo-buffer-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="example-2756">
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<p><strong>Example #1 <span class="function"><a href="finfo.buffer.html" class="function">finfo_buffer()</a></span> 函数例程</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 />$finfo </span><span style="color: #007700">= new </span><span style="color: #0000BB">finfo</span><span style="color: #007700">(</span><span style="color: #0000BB">FILEINFO_MIME</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">$finfo</span><span style="color: #007700">-></span><span style="color: #0000BB">buffer</span><span style="color: #007700">(</span><span style="color: #0000BB">$_POST</span><span style="color: #007700">[</span><span style="color: #DD0000">"script"</span><span style="color: #007700">]) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<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 class="example-contents"><p>以上例程的输出类似于：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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application/x-sh; charset=us-ascii
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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 seealso" id="refsect1-function.finfo-buffer-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="finfo.file.html" class="function" rel="rdfs-seeAlso">finfo_file()</a> - 别名 finfo_file()</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> |