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144 lines
6.2 KiB
HTML
144 lines
6.2 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>返回一个文件的信息</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-file" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">finfo_file</h1>
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<h1 class="refname">finfo::file</h1>
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<p class="verinfo">(PHP >= 5.3.0, PECL fileinfo >= 0.1.0)</p><p class="refpurpose"><span class="refname">finfo_file</span> -- <span class="refname">finfo::file</span> — <span class="dc-title">返回一个文件的信息</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.finfo-file-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.file.html" class="methodname">finfo_file</a></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$finfo</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$file_name</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.file.html" class="methodname">finfo::file</a></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$file_name</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$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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本函数用来获取一个文件的信息。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.finfo-file-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> 函数所返回的 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">file_name</code></dt>
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<dd>
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<p class="para">
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要检查的文件名。
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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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关于 <em>contexts</em> 的更多描述，请参考 <a href="ref.stream.html" class="xref">Stream 函数</a>。
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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-file-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">file_name</code> 参数指定的文件信息。
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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-file-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-2757">
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<p><strong>Example #1 <span class="function"><a href="finfo.file.html" class="function">finfo_file()</a></span> 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">= </span><span style="color: #0000BB">finfo_open</span><span style="color: #007700">(</span><span style="color: #0000BB">FILEINFO_MIME_TYPE</span><span style="color: #007700">); </span><span style="color: #FF8000">// 返回 mime 类型<br /></span><span style="color: #007700">foreach (</span><span style="color: #0000BB">glob</span><span style="color: #007700">(</span><span style="color: #DD0000">"*"</span><span style="color: #007700">) as </span><span style="color: #0000BB">$filename</span><span style="color: #007700">) {<br /> echo </span><span style="color: #0000BB">finfo_file</span><span style="color: #007700">(</span><span style="color: #0000BB">$finfo</span><span style="color: #007700">, </span><span style="color: #0000BB">$filename</span><span style="color: #007700">) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">finfo_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$finfo</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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text/html
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image/gif
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application/vnd.ms-excel
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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-file-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.buffer.html" class="function" rel="rdfs-seeAlso">finfo_buffer()</a> - 别名 finfo_buffer()</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> |