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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.1 $ -->
<!-- splitted from ./en/functions/ingres_ii.xml, last change in rev 1.1 -->
<refentry id="function.ingres-error">
<refnamediv>
<refname>ingres_error</refname>
<refpurpose>Gets a meaningful error message for the last error generated</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>string</type><methodname>ingres_error</methodname>
<methodparam choice="opt"><type>resource</type><parameter>link</parameter></methodparam>
</methodsynopsis>
<para>
Returns a string containing the last error, or NULL if no error has
occurred.
</para>
<para>
If a <parameter>link</parameter> resource is passed to
<function>ingres_error</function> it returns the last error recorded for
the link. If no link is passed then <function>ingres_error</function>
returns the last error reported using the default link.
</para>
<para>
The function, <function>ingres_error</function>, should always be called
after executing any database query. Calling another function before
<function>ingres_error</function> is called will reset or change any
error message from the last Ingres function call.
</para>
<para>
<example>
<title><function>ingres_error</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
ingres_connect($database, $user, $password);
ingres_query("select * from table");
$error_text = ingres_error();
if ( is_null($error_text) ) {
echo "An error occured - " . $error_text;
}
?>
]]>
</programlisting>
</example>
</para>
<para>
See also
<function>ingres_errno</function> and
<function>ingres_errsqlstate</function>.
</para>
</refsect1>
</refentry>
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