php-doc-en/reference/filesystem/functions/tmpfile.xml

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  <refentry id="function.tmpfile">
   <refnamediv>
    <refname>tmpfile</refname>
    <refpurpose>Creates a temporary file</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>resource</type><methodname>tmpfile</methodname>
      <void/>
     </methodsynopsis>
    <para>
     Creates a temporary file with an unique name in write mode,
     returning a file handle similar to the one returned by
     <function>fopen</function>.
     The file is automatically removed when closed (using
     <function>fclose</function>), or when the script ends.
    </para>
    <para>
     For details, consult your system documentation on the
     <literal>tmpfile(3)</literal> function, as well as the
     <filename>stdio.h</filename> header file.
    </para>
    <para>
     <example>
      <title><function>tmpfile</function> example</title>
      <programlisting role="php">
<![CDATA[
<?php
$temp = tmpfile();
fwrite($temp, "writing to tempfile");
fclose($temp); // this removes the file
?>
]]>
      </programlisting>
     </example>
    </para>
    <para>
     See also <function>tempnam</function>.
    </para>
   </refsect1>
  </refentry>

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