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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.3 $ -->
<refentry id="function.maxdb-num-rows">
<refnamediv>
<refname>maxdb_num_rows</refname>
<refpurpose>
Gets the number of rows in a result
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>Procedural style:</para>
<methodsynopsis>
<type>int</type><methodname>maxdb_num_rows</methodname>
<methodparam><type>resource</type><parameter>result</parameter></methodparam>
</methodsynopsis>
<para>Object oriented style (property):</para>
<classsynopsis>
<ooclass><classname>maxdb</classname></ooclass>
<fieldsynopsis><type>int</type><varname>num_rows</varname></fieldsynopsis>
</classsynopsis>
<para>
Returns the number of rows in the result set.
</para>
<para>
The use of <function>maxdb_num_rows</function> depends on whether you use
buffered or unbuffered result sets.
In case you use unbuffered resultsets <function>maxdb_num_rows</function>
will not correct the correct number of rows until all the rows in the result
have been retrieved.
</para>
</refsect1>
<refsect1>
&reftitle.returnvalues;
<para>
Returns number of rows in the result set.
</para>
<note>
<para>
If the number of rows is greater than maximal int value, the number
will be returned as a string.
</para>
</note>
</refsect1>
<refsect1>
&reftitle.seealso;
<para>
<function>maxdb_affected_rows</function>
<function>maxdb_store_result</function>
<function>maxdb_use_result</function>
<function>maxdb_query</function>
</para>
</refsect1>
<refsect1>
<title>Example</title>
<example>
<title>Object oriented style</title>
<programlisting role="php">
<![CDATA[
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
if ($result = $maxdb->query("SELECT cno, name FROM hotel.customer ORDER BY name")) {
/* determine number of rows result set */
$row_cnt = $result->num_rows;
printf("Result set has %d rows.\n", $row_cnt);
/* close result set */
$result->close();
}
/* close connection */
$maxdb->close();
?>
]]>
</programlisting>
</example>
<example>
<title>Procedural style</title>
<programlisting role="php">
<![CDATA[
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
if ($result = maxdb_query($link, "SELECT cno, name FROM hotel.customer ORDER BY name")) {
/* determine number of rows result set */
$row_cnt = maxdb_num_rows($result);
printf("Result set has %d rows.\n", $row_cnt);
/* close result set */
maxdb_free_result($result);
}
/* close connection */
maxdb_close($link);
?>
]]>
</programlisting>
</example>
<para>
The above examples would produce the following output:
</para>
<screen>
<![CDATA[
Result set has 15 rows.
]]>
</screen>
</refsect1>
</refentry>
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