mirror of
https://github.com/fofolee/uTools-Manuals.git
synced 2025-06-17 21:16:57 +08:00
131 lines
4.7 KiB
HTML
131 lines
4.7 KiB
HTML
<!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>删除文件</title>
|
||
</head>
|
||
<body class="docs"><div id="layout">
|
||
<div id="layout-content"><div id="function.unlink" class="refentry">
|
||
<div class="refnamediv">
|
||
<h1 class="refname">unlink</h1>
|
||
<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">unlink</span> — <span class="dc-title">删除文件</span></p>
|
||
|
||
</div>
|
||
<div class="refsect1 description" id="refsect1-function.unlink-description">
|
||
<h3 class="title">说明</h3>
|
||
<div class="methodsynopsis dc-description">
|
||
<span class="methodname"><strong>unlink</strong></span>
|
||
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$filename</code></span>
|
||
[, <span class="methodparam"><span class="type">resource</span> <code class="parameter">$context</code></span>
|
||
] ) : <span class="type">bool</span></div>
|
||
|
||
<p class="para rdfs-comment">
|
||
删除 <code class="parameter">filename</code>。和 Unix C 的
|
||
unlink() 函数相似。
|
||
发生错误时会产生一个 <strong><code>E_WARNING</code></strong> 级别的错误。
|
||
</p>
|
||
</div>
|
||
|
||
|
||
<div class="refsect1 parameters" id="refsect1-function.unlink-parameters">
|
||
<h3 class="title">参数</h3>
|
||
<p class="para">
|
||
<dl>
|
||
|
||
|
||
<dt>
|
||
<code class="parameter">filename</code></dt>
|
||
|
||
<dd>
|
||
|
||
<p class="para">
|
||
文件的路径。
|
||
</p>
|
||
</dd>
|
||
|
||
|
||
|
||
<dt>
|
||
<code class="parameter">context</code></dt>
|
||
|
||
<dd>
|
||
|
||
<blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">在 PHP 5.0.0
|
||
中增加了对上下文（Context）的支持。有关<em>上下文（Context）</em>的说明参见
|
||
<a href="book.stream.html" class="xref">Streams</a>。</span></p></blockquote>
|
||
</dd>
|
||
|
||
|
||
</dl>
|
||
|
||
</p>
|
||
</div>
|
||
|
||
|
||
<div class="refsect1 returnvalues" id="refsect1-function.unlink-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 class="refsect1 changelog" id="refsect1-function.unlink-changelog">
|
||
<h3 class="title">更新日志</h3>
|
||
<p class="para">
|
||
<table class="doctable informaltable">
|
||
|
||
<thead>
|
||
<tr>
|
||
<th>版本</th>
|
||
<th>说明</th>
|
||
</tr>
|
||
|
||
</thead>
|
||
|
||
<tbody class="tbody">
|
||
<tr>
|
||
<td>5.0.0</td>
|
||
<td>
|
||
自 PHP 5.0.0 起
|
||
<span class="function"><strong>unlink()</strong></span> 也可以用于<em class="emphasis">某些</em>
|
||
URL 封装协议。参考<a href="wrappers.html" class="xref">支持的协议和封装协议</a> 中的列表看哪些封装协议支持
|
||
<span class="function"><strong>unlink()</strong></span>。
|
||
</td>
|
||
</tr>
|
||
|
||
</tbody>
|
||
|
||
</table>
|
||
|
||
</p>
|
||
</div>
|
||
|
||
|
||
<div class="refsect1 examples" id="refsect1-function.unlink-examples">
|
||
<h3 class="title">范例</h3>
|
||
<p class="para">
|
||
<div class="example" id="example-2852">
|
||
<p><strong>Example #1 基本的 <span class="function"><strong>unlink()</strong></span> 用法</strong></p>
|
||
<div class="example-contents">
|
||
<div class="phpcode"><pre><span style="color: #000000">
|
||
<span style="color: #0000BB"><?php<br />$fh </span><span style="color: #007700">= </span><span style="color: #0000BB">fopen</span><span style="color: #007700">(</span><span style="color: #DD0000">'test.html'</span><span style="color: #007700">, </span><span style="color: #DD0000">'a'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$fh</span><span style="color: #007700">, </span><span style="color: #DD0000">'<h1>Hello world!</h1>'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$fh</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">unlink</span><span style="color: #007700">(</span><span style="color: #DD0000">'test.html'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
|
||
</span>
|
||
</pre></div>
|
||
</div>
|
||
|
||
</div>
|
||
</p>
|
||
</div>
|
||
|
||
|
||
<div class="refsect1 seealso" id="refsect1-function.unlink-seealso">
|
||
<h3 class="title">参见</h3>
|
||
<p class="para">
|
||
<ul class="simplelist">
|
||
<li class="member"><span class="function"><a href="rmdir.html" class="function" rel="rdfs-seeAlso">rmdir()</a> - 删除目录</span></li>
|
||
</ul>
|
||
</p>
|
||
</div>
|
||
|
||
</div></div></div></body></html> |