php-doc-en/reference/mysqli/functions/mysqli-error.xml
Mehdi Achour 15914a5a19 WS, prepare for new doc style
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@228204 c90b9560-bf6c-de11-be94-00142212c4b1
2007-01-27 17:37:36 +00:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.15 $ -->
<refentry id="function.mysqli-error">
<refnamediv>
<refname>mysqli_error</refname>
<refpurpose>Returns a string description of the last error</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>Procedural style:</para>
<methodsynopsis>
<type>string</type><methodname>mysqli_error</methodname>
<methodparam><type>mysqli</type><parameter>link</parameter></methodparam>
</methodsynopsis>
<para>Object oriented style (property)</para>
<classsynopsis>
<ooclass><classname>mysqli</classname></ooclass>
<fieldsynopsis><type>string</type><varname>error</varname></fieldsynopsis>
</classsynopsis>
<para>
The <function>mysqli_error</function> function is identical to the corresponding
<function>mysqli_errno</function> function in every way, except instead of returning
an integer error code the <function>mysqli_error</function> function will return
a string representation of the last error to occur for the database connection
represented by the <parameter>link</parameter> parameter. If no error has occured,
this function will return an empty string.
</para>
</refsect1>
<refsect1>
&reftitle.returnvalues;
<para>
A string that describes the error. An empty string if no error occurred.
</para>
</refsect1>
<refsect1>
&reftitle.seealso;
<para>
<function>mysqli_connect_errno</function>,
<function>mysqli_connect_error</function>,
<function>mysqli_errno</function>&listendand;
<function>mysqli_sqlstate</function>.
</para>
</refsect1>
<refsect1>
&reftitle.examples;
<example>
<title>Object oriented style</title>
<programlisting role="php">
<![CDATA[
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
if (!$mysqli->query("SET a=1")) {
printf("Errormessage: %s\n", $mysqli->error);
}
/* close connection */
$mysqli->close();
?>
]]>
</programlisting>
</example>
<example>
<title>Procedural style</title>
<programlisting role="php">
<![CDATA[
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
if (!mysqli_query($link, "SET a=1")) {
printf("Errormessage: %s\n", mysqli_error($link));
}
/* close connection */
mysqli_close($link);
?>
]]>
</programlisting>
</example>
&example.outputs;
<screen>
<![CDATA[
Errormessage: Unknown system variable 'a'
]]>
</screen>
</refsect1>
</refentry>
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