PHP: ifx_affected_rows - Manual

downloads | documentation | faq | getting help | mailing lists | reporting bugs | php.net sites | links | conferences | my php.net

search for in the

ifx_blobinfile_mode Informix

Last updated: Sat, 27 Jan 2007

view this page in

# ifx_affected_rows

(PHP 3 >= 3.0.3, PHP 4, PHP 5)

ifx_affected_rows -- Get number of rows affected by a query

## Description

int ifx_affected_rows ( resource result_id )

`result_id` is a valid result id returned by ifx_query() or ifx_prepare().

Returns the number of rows affected by a query associated with `result_id`.

For inserts, updates and deletes the number is the real number (sqlerrd[2]) of affected rows. For selects it is an estimate (sqlerrd[0]). Don't rely on it. The database server can never return the actual number of rows that will be returned by a SELECT because it has not even begun fetching them at this stage (just after the "PREPARE" when the optimizer has determined the query plan).

Useful after ifx_prepare() to limit queries to reasonable result sets.

Пример 1. Informix affected rows

`<?php
$rid = ifx_prepare("select * from emp
where name like " . $name, $connid);
if (! $rid) {
/* ... error ... */
}
$rowcount = ifx_affected_rows($rid);
if ($rowcount > 1000) {
printf ("Too many rows in result set (%d)\n<br />", $rowcount);
die ("Please restrict your query<br />\n");
}
?>`

See also ifx_num_rows().

add a note User Contributed Notes
ifx_affected_rows
There are no user contributed notes for this page.
ifx_blobinfile_mode Informix

Last updated: Sat, 27 Jan 2007
show source | credits | stats | sitemap | contact | advertising | mirror sites
Copyright © 2001-2007 The PHP Group
All rights reserved.
This mirror generously provided by: Yahoo! Inc.
Last updated: Sat Mar 10 11:33:19 2007 PST