PHP: dbx_sort - Manual

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

search for in the

Direct IO dbx_query

Last updated: Sat, 27 Jan 2007

view this page in

# dbx_sort

(PHP 4 >= 4.0.6, PHP 5 <= 5.0.4)

dbx_sort -- Sort a result from a dbx_query by a custom sort function

## Описание

bool dbx_sort ( object result, string user_compare_function )

Sort a result from a dbx_query() call with a custom sort function.

## Список параметров

`result`

  A result set returned by dbx_query().

`user_compare_function`

  The user-defined comparison function. It must accept two arguments and return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.

## Возвращаемые значения

Возвращает `TRUE` в случае успешного завершения или `FALSE` в случае возникновения ошибки.

## Примеры

Пример 1. dbx_sort() example

`<?php
function user_re_order($a, $b)
{
$rv = dbx_compare($a, $b, "parentid", DBX_CMP_DESC);
if (!$rv) {
$rv = dbx_compare($a, $b, "id", DBX_CMP_NUMBER);
}
return $rv;
}
$link = dbx_connect(DBX_ODBC, "", "db", "username", "password")
or die("Could not connect");
$result = dbx_query($link, "SELECT id, parentid, description FROM tbl ORDER BY id");
// data in $result is now ordered by id
dbx_sort($result, "user_re_order");
// data in $result is now ordered by parentid (descending), then by id
dbx_close($link);
?>`

## Примечания

> Замечание: It is always better to use `ORDER BY` `SQL` clause instead of dbx_sort() if possible.

## Смотрите также

dbx_compare()

add a note User Contributed Notes
dbx_sort
There are no user contributed notes for this page.
Direct IO dbx_query

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 09:32:46 2007 PST