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77 lines
4.2 KiB
HTML
77 lines
4.2 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>建立一个临时文件</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.tmpfile" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">tmpfile</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">tmpfile</span> — <span class="dc-title">建立一个临时文件</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.tmpfile-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>tmpfile</strong></span>
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( <span class="methodparam">void</span>
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) : <span class="type">resource</span></div>
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<p class="para rdfs-comment">
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以读写（w+）模式建立一个具有唯一文件名的临时文件，返回一个文件句柄。</p>
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<p class="para">
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文件会在关闭后（用
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<span class="function"><a href="fclose.html" class="function">fclose()</a></span>）自动被删除，或当脚本结束后。
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</p>
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<p class="para">
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详细信息请参考系统手册中的
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<em>tmpfile(3)</em> 函数，以及
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<var class="filename">stdio.h</var> 头文件。
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.tmpfile-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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返回一个与 <span class="function"><a href="fopen.html" class="function">fopen()</a></span> 所打开返回类似的新文件句柄， 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.tmpfile-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-2848">
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<p><strong>Example #1 <span class="function"><strong>tmpfile()</strong></span> 例子</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 />$temp </span><span style="color: #007700">= </span><span style="color: #0000BB">tmpfile</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp</span><span style="color: #007700">, </span><span style="color: #DD0000">"writing to tempfile"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fseek</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">fread</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp</span><span style="color: #007700">, </span><span style="color: #0000BB">1024</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$temp</span><span style="color: #007700">); </span><span style="color: #FF8000">// this removes the file<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>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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writing to tempfile
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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.tmpfile-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="tempnam.html" class="function" rel="rdfs-seeAlso">tempnam()</a> - 建立一个具有唯一文件名的文件</span></li>
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<li class="member"><span class="function"><a href="sys_get_temp_dir.html" class="function" rel="rdfs-seeAlso">sys_get_temp_dir()</a> - 返回用于临时文件的目录</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> |