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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 317663 $ -->
<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>
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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
-->
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