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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.2 $ -->
<refentry id="function.maxdb-thread-id">
<refnamediv>
<refname>maxdb_thread_id</refname>
<refname>maxdb->thread_id</refname>
<refpurpose>Returns the thread ID for the current connection</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>Procedural style:</para>
<methodsynopsis>
<type>int</type><methodname>maxdb_thread_id</methodname>
<methodparam><type>resource</type><parameter>link</parameter></methodparam>
</methodsynopsis>
<para>Object oriented style (property):</para>
<classsynopsis>
<ooclass><classname>maxdb</classname></ooclass>
<fieldsynopsis><type>int</type><varname>thread_id</varname></fieldsynopsis>
</classsynopsis>
<para>
The <function>maxdb_thread_id</function> function returns the thread
ID for the current connection which can then be killed using the
<function>maxdb_kill</function> function. If the connection is lost
and you reconnect with <function>maxdb_ping</function>, the thread ID
will be other. Therefore you should get the thread ID only when you need it.
</para>
<note>
<para>
The thread ID is assigned on a connection-by-connection basis. Hence,
if the connection is broken and then re-established a new thread ID
will be assigned.
</para>
</note>
</refsect1>
<refsect1>
<title>Return values</title>
<para>
<function>maxdb_thread_id</function> returns the Thread ID for the current connection.
</para>
</refsect1>
<refsect1>
<title>See also</title>
<para>
<function>maxdb_kill</function>
</para>
</refsect1>
<refsect1>
<title>Example</title>
<example>
<title>Object oriented style</title>
<programlisting role="php">
<![CDATA[
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
/* determine our thread id */
$thread_id = $maxdb->thread_id;
/* Kill connection */
$maxdb->kill($thread_id);
/* This should produce an error */
if (!$maxdb->query("CREATE TABLE mycity LIKE hotel.city")) {
printf("Error: %s\n", $maxdb->error);
exit;
}
/* close connection */
$maxdb->close();
?>
]]>
</programlisting>
</example>
<example>
<title>Procedural style</title>
<programlisting role="php">
<![CDATA[
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
/* determine our thread id */
$thread_id = maxdb_thread_id($link);
/* Kill connection */
maxdb_kill($link, $thread_id);
/* This should produce an error */
if (!maxdb_query($link, "CREATE TABLE mycity LIKE hotel.city")) {
printf("Error: %s\n", maxdb_error($link));
exit;
}
/* close connection */
maxdb_close($link);
?>
]]>
</programlisting>
</example>
<para>
The above examples would produce the following output:
</para>
<screen>
<![CDATA[
Warning: maxdb_query(): -10821 Session not connected <...>
Error: Session not connected
]]>
</screen>
</refsect1>
</refentry>
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