mirror of
https://github.com/sigmasternchen/php-doc-en
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87 lines
2.7 KiB
XML
87 lines
2.7 KiB
XML
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.2 -->
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<refentry id="function.tempnam">
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<refnamediv>
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<refname>tempnam</refname>
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<refpurpose>Create file with unique file name</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>string</type><methodname>tempnam</methodname>
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<methodparam><type>string</type><parameter>dir</parameter></methodparam>
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<methodparam><type>string</type><parameter>prefix</parameter></methodparam>
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</methodsynopsis>
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<para>
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Creates a file with a unique filename in the specified directory.
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If the directory does not exist, <function>tempnam</function> may
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generate a file in the system's temporary directory, and return
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the name of that.
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</para>
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<para>
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Prior to PHP 4.0.6, the behaviour of the
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<function>tempnam</function> function was system dependent. On
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Windows the TMP environment variable will override the
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<parameter>dir</parameter> parameter, on Linux the TMPDIR
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environment variable has precedence, while SVR4 will always use
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your <parameter>dir</parameter> parameter if the directory it
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points to exists. Consult your system documentation on the
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tempnam(3) function if in doubt.
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</para>
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<para>
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Returns the new temporary filename, or the &false; string on
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failure.
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<example>
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<title><function>tempnam</function> example</title>
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<programlisting role="php">
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<![CDATA[
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$tmpfname = tempnam ("/tmp", "FOO");
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$fp = fopen($tmpfname, "w");
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fwrite($fp, "writing to tempfile");
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fclose($fp);
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// do here something
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unlink($tmpfname);
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]]>
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</programlisting>
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</example>
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</para>
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<note>
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<simpara>
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This function's behavior changed in 4.0.3. The temporary file is also
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created to avoid a race condition where the file might appear in the
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filesystem between the time the string was generated and before the
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the script gets around to creating the file. Note, that you need
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to remove the file in case you need it no more, it is not done
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automatically.
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</simpara>
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</note>
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<para>
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See also <function>tmpfile</function> and <function>unlink</function>.
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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