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  <refentry id="function.mysqli-errno">
   <refnamediv>
    <refname>mysqli_errno</refname>
    <refname>mysqli->errno</refname>
    <refpurpose>Returns the error code for the most recent function call</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
    <para>Procedural style:</para>
     <methodsynopsis>
      <type>int</type><methodname>mysqli_errno</methodname>
      <methodparam><type>mysqli</type><parameter>link</parameter></methodparam>
     </methodsynopsis>
    <para>Object oriented style (property):</para>
    <classsynopsis>
     <ooclass><classname>mysqli</classname></ooclass>
     <fieldsynopsis><type>int</type><varname>errno</varname></fieldsynopsis>
    </classsynopsis>
    <para>
     The <function>mysqli_errno</function> function will return the last error code for
     the most recent MySQLi function call that can succeed or fail with respect to the
     database link defined by the <parameter>link</parameter> parameter. If no errors
     have occured, this function will return zero.
    </para>
    <note>
     <para>
      Client error message numbers are listed in the MySQL <filename>errmsg.h</filename> header file, 
      server error message numbers are listed in <filename>mysqld_error.h</filename>. 
      In the MySQL source distribution you can find a complete list of error messages and error numbers 
      in the file <filename>Docs/mysqld_error.txt</filename>. 
     </para>
    </note>
   </refsect1>
   <refsect1>
    &reftitle.returnvalues;
    <para>
     An error code value for the last call, if it failed. zero means no error occurred.
    </para>
   </refsect1>
   <refsect1>
    &reftitle.seealso;
    <para>
     <function>mysqli_connect_errno</function>,
     <function>mysqli_connect_error</function>,
     <function>mysqli_error</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("Errorcode: %d\n", $mysqli->errno);
}

/* 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($link, "SET a=1")) {
    printf("Errorcode: %d\n", mysqli_errno($link));
}

/* close connection */
mysqli_close($link);
?>
]]>
     </programlisting>
    </example>
    &example.outputs;
    <screen>
<![CDATA[
Errorcode: 1193
]]>
    </screen>
   </refsect1>
  </refentry>

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