egroupware/phpgwapi/inc/class.arrayfunctions.inc.php
2002-12-18 00:20:46 +00:00

67 lines
2.2 KiB
PHP

<?php
/**************************************************************************\
* phpGroupWare API - Arrayfunctions *
* This file written by Lars Kneschke <lkneschke@phpgw.de> *
* Copyright (C) 2002 Lars Kneschke *
* ------------------------------------------------------------------------ *
* This library is part of the phpGroupWare API *
* ------------------------------------------------------------------------ *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, *
* or any later version. *
* This library is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
* See the GNU Lesser General Public License for more details. *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
\**************************************************************************/
/* $Id$ */
class arrayfunctions
{
function arrayfunctions($vars='')
{
}
/*
* arfsort() - (AR)ray (F)ield Sort.
* Sort a multi-dimensional array according
* to a list of fields.
* @param $a The array to sort
* @param $fl Field list (in order of importance)
*/
function arfsort( $a, $fl )
{
$GLOBALS['__ARFSORT_LIST__'] = $fl;
if (is_array($a))
{
usort( $a, array($this,'arfsort_func') );
return $a;
}
return False;
}
/*
* Internal sorting function for arfsort()
*/
function arfsort_func( $a, $b )
{
foreach( $GLOBALS['__ARFSORT_LIST__'] as $f )
{
$strc = strcmp( $a[$f], $b[$f] );
if ( $strc != 0 )
{
return $strc;
}
}
return 0;
}
} // end class arrayfunctions
?>