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124 lines
5.7 KiB
HTML
124 lines
5.7 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>改变文件的所有者</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.chown" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">chown</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">chown</span> — <span class="dc-title">改变文件的所有者</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.chown-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>chown</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$filename</code></span>
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, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$user</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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尝试将文件 <code class="parameter">filename</code> 的所有者改成用户
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<code class="parameter">user</code>（由用户名或用户 ID 指定）。
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只有超级用户可以改变文件的所有者。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.chown-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">filename</code></dt>
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<dd>
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<p class="para">
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文件路径。
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</p>
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</dd>
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<dt>
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<code class="parameter">user</code></dt>
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<dd>
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<p class="para">
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用户名或数字。
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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.chown-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 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 examples" id="refsect1-function.chown-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-2763">
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<p><strong>Example #1 简单的 <span class="function"><strong>chown()</strong></span> 用法</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: #FF8000">// File name and username to use<br /></span><span style="color: #0000BB">$file_name</span><span style="color: #007700">= </span><span style="color: #DD0000">"foo.php"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$path </span><span style="color: #007700">= </span><span style="color: #DD0000">"/home/sites/php.net/public_html/sandbox/" </span><span style="color: #007700">. </span><span style="color: #0000BB">$file_name </span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$user_name </span><span style="color: #007700">= </span><span style="color: #DD0000">"root"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// Set the user<br /></span><span style="color: #0000BB">chown</span><span style="color: #007700">(</span><span style="color: #0000BB">$path</span><span style="color: #007700">, </span><span style="color: #0000BB">$user_name</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Check the result<br /></span><span style="color: #0000BB">$stat </span><span style="color: #007700">= </span><span style="color: #0000BB">stat</span><span style="color: #007700">(</span><span style="color: #0000BB">$path</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">posix_getpwuid</span><span style="color: #007700">(</span><span style="color: #0000BB">$stat</span><span style="color: #007700">[</span><span style="color: #DD0000">'uid'</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 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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Array
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(
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[name] => root
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[passwd] => x
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[uid] => 0
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[gid] => 0
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[gecos] => root
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[dir] => /root
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[shell] => /bin/bash
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)
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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 notes" id="refsect1-function.chown-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">此函数不能作用于<a href="features.remote_files.html" class="link">远程文件</a>，被检查的文件必须是可通过服务器的文件系统访问的。</span></p></blockquote>
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<blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">当启用
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<a href="features.safe_mode.html" class="link">安全模式</a>时，
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PHP 会检查被操作的文件或目录是否与被执行的脚本有相同的 UID（所有者）。</span></p></blockquote>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.chown-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="chmod.html" class="function" rel="rdfs-seeAlso">chmod()</a> - 改变文件模式</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> |