function.tmpfile.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Creates a temporary file</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.tempnam.html">tempnam</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.touch.html">touch</a></div> <div class="up"><a href="ref.filesystem.html">Filesystem Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.tmpfile" class="refentry"> <div class="refnamediv"> <h1 class="refname">tmpfile</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">tmpfile</span> — <span class="dc-title">Creates a temporary file</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">resource</span> <span class="methodname"><b><b>tmpfile</b></b></span> ( <span class="methodparam">void</span> )</div> <p class="para rdfs-comment"> Creates a temporary file with a unique name in read-write (w+) mode and returns a file handle . </p> <p class="para"> The file is automatically removed when closed (using <a href="function.fclose.html" class="function">fclose()</a>), or when the script ends. </p> <p class="para"> For details, consult your system documentation on the <i>tmpfile(3)</i> function, as well as the <var class="filename">stdio.h</var> header file. </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns a file handle, similar to the one returned by <a href="function.fopen.html" class="function">fopen()</a>, for the new file, or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>tmpfile()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><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></span></code></div> </div> <div class="example-contents"><p>The above example will output:</p></div> <div class="example-contents"><pre><div class="cdata"><pre>writing to tempfile</pre></div> </pre></div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.tempnam.html" class="function" rel="rdfs-seeAlso">tempnam()</a></li> <li class="member"><a href="function.sys-get-temp-dir.html" class="function" rel="rdfs-seeAlso">sys_get_temp_dir()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.tempnam.html">tempnam</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.touch.html">touch</a></div> <div class="up"><a href="ref.filesystem.html">Filesystem Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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