mirror of
https://github.com/fofolee/uTools-Manuals.git
synced 2025-06-17 21:16:57 +08:00
88 lines
5.1 KiB
HTML
88 lines
5.1 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>将缓冲内容输出到文件</title>
|
||
</head>
|
||
<body class="docs"><div id="layout">
|
||
<div id="layout-content"><div id="function.fflush" class="refentry">
|
||
<div class="refnamediv">
|
||
<h1 class="refname">fflush</h1>
|
||
<p class="verinfo">(PHP 4 >= 4.0.1, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">fflush</span> — <span class="dc-title">将缓冲内容输出到文件</span></p>
|
||
|
||
</div>
|
||
<div class="refsect1 description" id="refsect1-function.fflush-description">
|
||
<h3 class="title">说明</h3>
|
||
<div class="methodsynopsis dc-description">
|
||
<span class="methodname"><strong>fflush</strong></span>
|
||
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$handle</code></span>
|
||
) : <span class="type">bool</span></div>
|
||
|
||
<p class="para rdfs-comment">
|
||
本函数强制将所有缓冲的输出写入
|
||
<code class="parameter">handle</code> 文件句柄所指向的资源。
|
||
成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
|
||
</p>
|
||
<p class="para">文件指针必须是有效的，必须指向由
|
||
<span class="function"><a href="fopen.html" class="function">fopen()</a></span> 或 <span class="function"><a href="fsockopen.html" class="function">fsockopen()</a></span> 成功打开的文件(并还未由 <span class="function"><a href="fclose.html" class="function">fclose()</a></span> 关闭)。</p>
|
||
</div>
|
||
|
||
|
||
<div class="refsect1 parameters" id="refsect1-function.fflush-parameters">
|
||
<h3 class="title">参数</h3>
|
||
<p class="para">
|
||
<dl>
|
||
|
||
|
||
<dt>
|
||
<code class="parameter">handle</code></dt>
|
||
|
||
<dd>
|
||
|
||
<p class="para">文件指针必须是有效的，必须指向由
|
||
<span class="function"><a href="fopen.html" class="function">fopen()</a></span> 或 <span class="function"><a href="fsockopen.html" class="function">fsockopen()</a></span> 成功打开的文件(并还未由 <span class="function"><a href="fclose.html" class="function">fclose()</a></span> 关闭)。</p>
|
||
</dd>
|
||
|
||
|
||
</dl>
|
||
|
||
</p>
|
||
</div>
|
||
|
||
|
||
<div class="refsect1 returnvalues" id="refsect1-function.fflush-returnvalues">
|
||
<h3 class="title">返回值</h3>
|
||
<p class="para">
|
||
成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
|
||
</p>
|
||
</div>
|
||
|
||
|
||
<div class="refsect1 examples" id="refsect1-function.fflush-examples">
|
||
<h3 class="title">范例</h3>
|
||
<p class="para">
|
||
<div class="example" id="example-2772">
|
||
<p><strong>Example #1 File write example using <span class="function"><strong>fflush()</strong></span></strong></p>
|
||
<div class="example-contents">
|
||
<div class="phpcode"><pre><span style="color: #000000">
|
||
<span style="color: #0000BB"><?php<br />$filename </span><span style="color: #007700">= </span><span style="color: #DD0000">'bar.txt'</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$file </span><span style="color: #007700">= </span><span style="color: #0000BB">fopen</span><span style="color: #007700">(</span><span style="color: #0000BB">$filename</span><span style="color: #007700">, </span><span style="color: #DD0000">'r+'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">rewind</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">, </span><span style="color: #DD0000">'Foo'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fflush</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">ftruncate</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">, </span><span style="color: #0000BB">ftell</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</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.fflush-seealso">
|
||
<h3 class="title">参见</h3>
|
||
<p class="para">
|
||
<ul class="simplelist">
|
||
<li class="member"><span class="function"><a href="clearstatcache.html" class="function" rel="rdfs-seeAlso">clearstatcache()</a> - 清除文件状态缓存</span></li>
|
||
<li class="member"><span class="function"><a href="fwrite.html" class="function" rel="rdfs-seeAlso">fwrite()</a> - 写入文件（可安全用于二进制文件）</span></li>
|
||
</ul>
|
||
</p>
|
||
</div>
|
||
|
||
</div></div></div></body></html> |