<?xml version="1.0" encoding="utf-8"?>

<!-- $Revision$ -->
<refentry xml:id="mongodb.lasterror" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>MongoDB::lastError</refname>
  <refpurpose>Check if there was an error on the most recent db operation performed</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <modifier>public</modifier> <type>array</type><methodname>MongoDB::lastError</methodname>
   <void/>
  </methodsynopsis>
  <para>
   This method is equivalent to:
   <programlisting role="php">
<![CDATA[
<?php

public function lastError() {
    return $this->command(array('getlasterror' => 1));
}

?>
]]>
   </programlisting>
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  &no.function.parameters;
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns the error, if there was one.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <example>
   <title><function>MongoDB::lastError</function> &null; error example</title>
   <programlisting role="php">
<![CDATA[
<?php
$db->resetError();
var_dump($db->lastError());
?>
]]>
   </programlisting>
   &example.outputs.similar;
   <screen>
<![CDATA[
array(3) {
  ["err"]=>
  NULL
  ["n"]=>
  int(0)
  ["ok"]=>
  float(1)
}
]]>
   </screen>
  </example>
  <example>
   <title><function>MongoDB::lastError</function> duplicate key example</title>
   <programlisting role="php">
<![CDATA[
<?php
$c = $db->selectCollection("foo");

// insert two documents with the same _id
$c->insert(array("_id" => 1));
$c->insert(array("_id" => 1));

var_dump($db->lastError());
?>
]]>
   </programlisting>
   &example.outputs.similar;
   <screen>
<![CDATA[
array(3) {
  ["err"]=>
  string(64) "E11000 duplicate key errorindex: foo.foo.$_id_  dup key: { : 1 }"
  ["n"]=>
  int(0)
  ["ok"]=>
  float(1)
}
]]>
   </screen>
  </example>
 </refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->