78 lines
2.0 KiB
PHP
78 lines
2.0 KiB
PHP
<?php
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/**
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* Helper class for sorting arrays on arbitrary criteria for usort/uasort.
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*
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* Copyright 2003-2017 Horde LLC (http://www.horde.org/)
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*
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* See the enclosed file COPYING for license information (LGPL). If you
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* did not receive this file, see http://www.horde.org/licenses/lgpl21.
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*
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* @author Marko Djukic <marko@oblo.com>
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* @author Jan Schneider <jan@horde.org>
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* @author Michael Slusarz <slusarz@horde.org>
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* @category Horde
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* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
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* @package Util
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*/
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class Horde_Array_Sort_Helper
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{
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/**
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* The array key to sort by.
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*
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* @var string
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*/
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public $key;
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/**
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* Compare two associative arrays by the array key defined in self::$key.
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*
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* @param array $a
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* @param array $b
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*/
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public function compare($a, $b)
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{
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return strcoll(Horde_String::lower($a[$this->key], true, 'UTF-8'), Horde_String::lower($b[$this->key], true, 'UTF-8'));
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}
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/**
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* Compare, in reverse order, two associative arrays by the array key
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* defined in self::$key.
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*
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* @param scalar $a TODO
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* @param scalar $b TODO
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*
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* @return TODO
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*/
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public function reverseCompare($a, $b)
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{
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return strcoll(Horde_String::lower($b[$this->key], true, 'UTF-8'), Horde_String::lower($a[$this->key], true, 'UTF-8'));
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}
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/**
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* Compare array keys case insensitively for uksort.
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*
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* @param scalar $a TODO
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* @param scalar $b TODO
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*
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* @return TODO
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*/
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public function compareKeys($a, $b)
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{
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return strcoll(Horde_String::lower($a, true, 'UTF-8'), Horde_String::lower($b, true, 'UTF-8'));
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}
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/**
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* Compare, in reverse order, array keys case insensitively for uksort.
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*
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* @param scalar $a TODO
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* @param scalar $b TODO
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*
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* @return TODO
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*/
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public function reverseCompareKeys($a, $b)
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{
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return strcoll(Horde_String::lower($b, true, 'UTF-8'), Horde_String::lower($a, true, 'UTF-8'));
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}
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}
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