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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.maxdb-stmt-affected-rows">
 <refnamediv>
  <refname>maxdb_stmt_affected_rows</refname>
  <refname>maxdb_stmt::affected_rows</refname>
  <refpurpose>Returns the total number of rows changed, deleted, or
  inserted by the last executed statement
  </refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <para>&style.procedural;</para>
  <methodsynopsis>
   <type>int</type><methodname>maxdb_stmt_affected_rows</methodname>
   <methodparam><type>resource</type><parameter>stmt</parameter></methodparam>
  </methodsynopsis>
  <para>&style.oop;</para>
  <fieldsynopsis><type>int</type><varname>maxdb_stmt->affected_rows</varname></fieldsynopsis>
  <para>
   <function>maxdb_stmt_affected_rows</function> returns the number of rows affected
   by INSERT, UPDATE, or DELETE query. If the last query was invalid or the
   number of rows can not determined, this function will return -1.
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   An integer greater than zero indicates the number of rows affected or retrieved.
   Zero indicates that no records where updated for an UPDATE/DELETE statement, no
   rows matched the WHERE clause in the query or that no query has yet been executed.
   -1 indicates that the query has returned an error or the number of rows can not determined.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <example>
   <title>&style.oop;</title>
   <programlisting role="php">
<![CDATA[
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");

/* check connection */
if (maxdb_connect_errno()) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}

/* create temp table */
$maxdb->query("CREATE TABLE temp.mycity LIKE hotel.city");

$query = "INSERT INTO temp.mycity SELECT * FROM hotel.city WHERE state LIKE ?";

/* prepare statement */
if ($stmt = $maxdb->prepare($query)) {

   /* Bind variable for placeholder */
   $code = 'N%';
   $stmt->bind_param("s", $code);

   /* execute statement */
   $stmt->execute();

   printf("rows inserted: %d\n", $stmt->affected_rows);

   /* close statement */
   $stmt->close();
}

/* close connection */
$maxdb->close();
?>
]]>
   </programlisting>
  </example>
  <example>
   <title>&style.procedural;</title>
   <programlisting role="php">
<![CDATA[
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

/* check connection */
if (maxdb_connect_errno()) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}

/* create temp table */
maxdb_query($link, "CREATE TABLE temp.mycity LIKE hotel.city");

$query = "INSERT INTO temp.mycity SELECT * FROM hotel.city WHERE state LIKE ?";

/* prepare statement */
if ($stmt = maxdb_prepare($link, $query)) {

   /* Bind variable for placeholder */
   $code = 'N%';
   maxdb_stmt_bind_param($stmt, "s", $code);

   /* execute statement */
   maxdb_stmt_execute($stmt);

   printf("rows inserted: %d\n", maxdb_stmt_affected_rows($stmt));

   /* close statement */
   maxdb_stmt_close($stmt);
}

/* close connection */
maxdb_close($link);
?>
]]>
   </programlisting>
  </example>
  &example.outputs.similar;
  <screen>
<![CDATA[
rows inserted: 4
]]>
  </screen>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>maxdb_stmt_num_rows</function></member>
    <member><function>maxdb_prepare</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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