	О проекте
	Руководство php

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

This mirror generously provided by: Yahoo! Inc.
Last updated: Sun Nov 4 14:16:40 2007 PST

Новости

11 июля 2007
Сайт запущен