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

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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.tmpfile">
 <refnamediv>
  <refname>tmpfile</refname>
  <refpurpose>Creates a temporary file</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>resource</type><methodname>tmpfile</methodname>
   <void/>
  </methodsynopsis>
  <para>
   Creates a temporary file with a unique name in read-write (w+) mode and
   returns a file handle .
  </para>
  <para>
   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>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns a file handle, similar to the one returned by
   <function>fopen</function>, for the new file&return.falseforfailure;.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>tmpfile</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$temp = tmpfile();
fwrite($temp, "writing to tempfile");
fseek($temp, 0);
echo fread($temp, 1024);
fclose($temp); // this removes the file
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
writing to tempfile
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>tempnam</function></member>
    <member><function>sys_get_temp_dir</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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