SortByMultiField.php
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<?php
/*
"Contact Form to Database" Copyright (C) 2011-2012 Michael Simpson (email : michael.d.simpson@gmail.com)
This file is part of Contact Form to Database.
Contact Form to Database is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Contact Form to Database 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Contact Form to Database.
If not, see <http://www.gnu.org/licenses/>.
*/
require_once('SortTransform.php');
class SortByMultiField extends SortTransform {
var $fieldName1;
var $fieldName2;
var $fieldName3;
function __construct($fieldName1, $fieldName2 = null, $fieldName3 = null) {
$this->fieldName1 = $fieldName1;
$this->fieldName2 = $fieldName2;
$this->fieldName3 = $fieldName3;
}
public function sort($a, $b) {
$result = strcmp($a[$this->fieldName1], $b[$this->fieldName1]);
if ($result == 0 && $this->fieldName2) {
$result = strcmp($a[$this->fieldName2], $b[$this->fieldName2]);
if ($result == 0 && $this->fieldName3) {
$result = strcmp($a[$this->fieldName3], $b[$this->fieldName3]);
}
}
return $result;
}
}