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<refentry xml:id="function.define-syslog-variables" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>define_syslog_variables</refname>
  <refpurpose>Initializes all syslog related variables</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>void</type><methodname>define_syslog_variables</methodname>
   <void/>
  </methodsynopsis>
  <para>
   Initializes all variables used in the syslog functions.
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.void;
  </para>
  <table>
   <title>Syslog variables</title>
   <tgroup cols="4">
    <thead>
     <row>
      <entry>Variable</entry>
      <entry>Constant equal</entry>
      <entry>Meaning</entry>
      <entry>Notes</entry>
     </row>
    </thead>
    <tbody>
     <row>
      <entry><varname>$LOG_EMERG</varname></entry>
      <entry><constant>LOG_EMERG</constant></entry>
      <entry>System is unusable</entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_ALERT</varname></entry>
      <entry><constant>LOG_ALERT</constant></entry>
      <entry>Immediate action required</entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_CRIT</varname></entry>
      <entry><constant>LOG_CRIT</constant></entry>
      <entry>Critical conditions</entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_ERR</varname></entry>
      <entry><constant>LOG_ERR</constant></entry>
      <entry></entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_WARNING</varname></entry>
      <entry><constant>LOG_WARNING</constant></entry>
      <entry></entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_NOTICE</varname></entry>
      <entry><constant>LOG_NOTICE</constant></entry>
      <entry></entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_INFO</varname></entry>
      <entry><constant>LOG_INFO</constant></entry>
      <entry></entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_DEBUG</varname></entry>
      <entry><constant>LOG_DEBUG</constant></entry>
      <entry></entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_KERN</varname></entry>
      <entry><constant>LOG_KERN</constant></entry>
      <entry></entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_USER</varname></entry>
      <entry><constant>LOG_USER</constant></entry>
      <entry>Genetic user level</entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_MAIL</varname></entry>
      <entry><constant>LOG_MAIL</constant></entry>
      <entry>Log to email</entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_DAEMON</varname></entry>
      <entry><constant>LOG_DAEMON</constant></entry>
      <entry>Other system daemons</entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_AUTH</varname></entry>
      <entry><constant>LOG_AUTH</constant></entry>
      <entry></entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_SYSLOG</varname></entry>
      <entry><constant>LOG_SYSLOG</constant></entry>
      <entry></entry>
      <entry>Not available on Netware</entry>
     </row>
     <row>
      <entry><varname>$LOG_LPR</varname></entry>
      <entry><constant>LOG_LPR</constant></entry>
      <entry></entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_NEWS</varname></entry>
      <entry><constant>LOG_NEWS</constant></entry>
      <entry>Usenet new</entry>
      <entry>Not available on HP-UX</entry>
     </row>
     <row>
      <entry><varname>$LOG_CRON</varname></entry>
      <entry><constant>LOG_CRON</constant></entry>
      <entry></entry>
      <entry>Not available on all platforms</entry>
     </row>
     <row>
      <entry><varname>$LOG_AUTHPRIV</varname></entry>
      <entry><constant>LOG_AUTHPRIV</constant></entry>
      <entry></entry>
      <entry>Not available on AIX</entry>
     </row>
     <row>
      <entry><varname>$LOG_LOCAL0</varname></entry>
      <entry><constant>LOG_LOCAL0</constant></entry>
      <entry></entry>
      <entry>Not available on Windows and Netware</entry>
     </row>
     <row>
      <entry><varname>$LOG_LOCAL1</varname></entry>
      <entry><constant>LOG_LOCAL1</constant></entry>
      <entry></entry>
      <entry>Not available on Windows and Netware</entry>
     </row>
     <row>
      <entry><varname>$LOG_LOCAL2</varname></entry>
      <entry><constant>LOG_LOCAL2</constant></entry>
      <entry></entry>
      <entry>Not available on Windows and Netware</entry>
     </row>
     <row>
      <entry><varname>$LOG_LOCAL3</varname></entry>
      <entry><constant>LOG_LOCAL3</constant></entry>
      <entry></entry>
      <entry>Not available on Windows and Netware</entry>
     </row>
     <row>
      <entry><varname>$LOG_LOCAL4</varname></entry>
      <entry><constant>LOG_LOCAL4</constant></entry>
      <entry></entry>
      <entry>Not available on Windows and Netware</entry>
     </row>
     <row>
      <entry><varname>$LOG_LOCAL5</varname></entry>
      <entry><constant>LOG_LOCAL5</constant></entry>
      <entry></entry>
      <entry>Not available on Windows and Netware</entry>
     </row>
     <row>
      <entry><varname>$LOG_LOCAL6</varname></entry>
      <entry><constant>LOG_LOCAL6</constant></entry>
      <entry></entry>
      <entry>Not available on Windows and Netware</entry>
     </row>
     <row>
      <entry><varname>$LOG_LOCAL7</varname></entry>
      <entry><constant>LOG_LOCAL7</constant></entry>
      <entry></entry>
      <entry>Not available on Windows and Netware</entry>
     </row>
     <row>
      <entry><varname>$LOG_PID</varname></entry>
      <entry><constant>LOG_PID</constant></entry>
      <entry></entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_CONS</varname></entry>
      <entry><constant>LOG_CONS</constant></entry>
      <entry></entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_ODELAY</varname></entry>
      <entry><constant>LOG_ODELAY</constant></entry>
      <entry></entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_NDELAY</varname></entry>
      <entry><constant>LOG_NDELAY</constant></entry>
      <entry></entry>
      <entry></entry>
     </row>
     <row>
      <entry><varname>$LOG_NOWAIT</varname></entry>
      <entry><constant>LOG_NOWAIT</constant></entry>
      <entry></entry>
      <entry>Not available on BeOS</entry>
     </row>
     <row>
      <entry><varname>$LOG_PERROR</varname></entry>
      <entry><constant>LOG_PERROR</constant></entry>
      <entry></entry>
      <entry>Not available on AIX</entry>
     </row>
    </tbody>
   </tgroup>
  </table>
  &warn.deprecated.function-5-3-0.removed-6-0-0;
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>define_syslog_variables</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
// Check if syslog variables already is defined
if(!get_cfg_var('define_syslog_variables'))
{
	define_syslog_variables();
}

// Open the log
openlog('', $LOG_ODELAY, $LOG_MAIL | $LOG_USER);

// Continue script ...
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <para>
   <informaltable>
    <tgroup cols="2">
     <thead>
      <row>
       <entry>&Version;</entry>
       <entry>&Description;</entry>
      </row>
     </thead>
     <tbody>
      <row>
       <entry>6.0.0</entry>
       <entry>
        This function was removed from PHP.
       </entry>
      </row>
      <row>
       <entry>5.3.0</entry>
       <entry>
        This function now throws an E_DEPRECATED notice.
       </entry>
      </row>
     </tbody>
    </tgroup>
   </informaltable>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>openlog</function></member>
    <member><function>syslog</function></member>
    <member><function>closelog</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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