php-doc-en/reference/mysql/functions/mysql-num-rows.xml
2003-02-28 23:54:26 +00:00

81 lines
2.3 KiB
XML

<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.4 $ -->
<!-- splitted from ./en/functions/mysql.xml, last change in rev 1.2 -->
<refentry id="function.mysql-num-rows">
<refnamediv>
<refname>mysql_num_rows</refname>
<refpurpose>Get number of rows in result</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>int</type><methodname>mysql_num_rows</methodname>
<methodparam><type>resource</type><parameter>result</parameter></methodparam>
</methodsynopsis>
<para>
<function>mysql_num_rows</function> returns the number of rows in
a result set. This command is only valid for SELECT statements.
To retrieve the number of rows affected by a INSERT, UPDATE or
DELETE query, use <function>mysql_affected_rows</function>.
<example>
<title><function>mysql_num_rows</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$link = mysql_connect("localhost", "mysql_user", "mysql_password");
mysql_select_db("database", $link);
$result = mysql_query("SELECT * FROM table1", $link);
$num_rows = mysql_num_rows($result);
echo "$num_rows Rows\n";
?>
]]>
</programlisting>
</example>
</para>
<note>
<para>
If you use <function>mysql_unbuffered_query</function>,
<function>mysql_num_rows</function> will not return the
correct value until all the rows in the result set have been
retrieved.
</para>
</note>
<para>
See also
<function>mysql_affected_rows</function>,
<function>mysql_connect</function>,
<function>mysql_data_seek</function>,
<function>mysql_select_db</function>, and
<function>mysql_query</function>.
</para>
<para>
For downward compatibility <function>mysql_numrows</function> can
also be used. This is deprecated however.
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"../../../../manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->