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<refentry xml:id="function.ldap-errno" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>ldap_errno</refname>
  <refpurpose>Return the LDAP error number of the last LDAP command</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>int</type><methodname>ldap_errno</methodname>
   <methodparam><type>resource</type><parameter>link_identifier</parameter></methodparam>
  </methodsynopsis>
  <para>
   Returns the standardized error number returned by the last LDAP command.
   This number can be converted into a textual error message using
   <function>ldap_err2str</function>.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>link_identifier</parameter></term>
     <listitem>
      <para>
       An LDAP link identifier, returned by <function>ldap_connect</function>.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Return the LDAP error number of the last LDAP command for this
   link.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   Unless you lower your warning level in your &php.ini; sufficiently or
   prefix your LDAP commands with @ (at) characters to suppress warning
   output, the errors generated will also show up in your HTML output.
   <example>
    <title>Generating and catching an error</title>
<programlisting role="php">
<![CDATA[
<?php
// This example contains an error, which we will catch.
$ld = ldap_connect("localhost");
$bind = ldap_bind($ld);
// syntax error in filter expression (errno 87),
// must be "objectclass=*" to work.
$res =  @ldap_search($ld, "o=Myorg, c=DE", "objectclass");
if (!$res) {
    echo "LDAP-Errno: " . ldap_errno($ld) . "<br />\n";
    echo "LDAP-Error: " . ldap_error($ld) . "<br />\n";
    die("Argh!<br />\n");
}
$info = ldap_get_entries($ld, $res);
echo $info["count"] . " matching entries.<br />\n";
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>ldap_err2str</function></member>
    <member><function>ldap_error</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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