<?xml version="1.0" encoding="iso-8859-1"?>
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.maxdb-errno">
 <refnamediv>
  <refname>maxdb_errno</refname>
  <refname>maxdb->errno</refname>
  <refpurpose>Returns the error code for the most recent function call</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <para>Procedural style:</para>
  <methodsynopsis>
   <type>int</type><methodname>maxdb_errno</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>errno</varname></fieldsynopsis>
  </classsynopsis>
  <para>
   The <function>maxdb_errno</function> function will return the last error code for
   the most recent MaxDB function call that can succeed or fail with respect to the
   database link defined by the <parameter>link</parameter> parameter. If no errors
   have occured, this function will return zero.
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   An error code value for the last call, if it failed. zero means no error occurred.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <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();
}

if (!$maxdb->query("SELECT xxx FROM hotel.city")) {
   printf("Errorcode: %d\n", $maxdb->errno);
}

/* 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();
}

if (!maxdb_query($link, "SELECT xxx FROM hotel.city")) {
   printf("Errorcode: %d\n", maxdb_errno($link));
}

/* close connection */
maxdb_close($link);
?>
]]>
   </programlisting>
  </example>
  <para>
   The above examples would produce the following output:
  </para>
  <screen>
<![CDATA[
PHP Warning:  maxdb_query(): -4005 POS(8) Unknown column name:XXX [42000] <...>
Errorcode: -4005
]]>
  </screen>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>maxdb_connect_errno</function></member>
    <member><function>maxdb_connect_error</function></member>
    <member><function>maxdb_error</function></member>
    <member><function>maxdb_sqlstate</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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