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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<refentry xml:id="function.odbc-num-rows" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>odbc_num_rows</refname>
<refpurpose>Number of rows in a result</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>int</type><methodname>odbc_num_rows</methodname>
<methodparam><type>resource</type><parameter>result_id</parameter></methodparam>
</methodsynopsis>
<para>
Gets the number of rows in a result. For INSERT, UPDATE and DELETE
statements <function>odbc_num_rows</function> returns the number of rows
affected. For a SELECT clause this <literal>can</literal> be the number
of rows available.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>result_id</parameter></term>
<listitem>
<para>
The result identifier returned by <function>odbc_exec</function>.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns the number of rows in an ODBC result.
This function will return -1 on error.
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
<note>
<para>
Using <function>odbc_num_rows</function> to determine the number of rows
available after a SELECT will return -1 with many drivers.
</para>
</note>
</refsect1>
</refentry>
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