73 lines
1.6 KiB
PHP
73 lines
1.6 KiB
PHP
<?php
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/**
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* Sorting Utility Collection
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*
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* PHP version 5
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*
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* Licensed under The MIT License
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* Redistribution of these files must retain the above copyright notice.
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*
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* @author Josh Sherman <josh@gravityblvd.com>
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* @copyright Copyright 2007-2014, Josh Sherman
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* @license http://www.opensource.org/licenses/mit-license.html
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* @package PICKLES
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* @link https://github.com/joshtronic/pickles
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*/
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namespace Pickles;
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/**
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* Sort Class
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*
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* I got tired of writing separate usort functions to sort by different array
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* keys in the array, this class solves that.
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*/
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class Sort
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{
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/**
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* Ascending
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*
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* Variable to utilize ascending sort
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*
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* @var integer
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*/
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const ASC = 'ASC';
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/**
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* Descending
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*
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* Variable to utilize descending sort
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*
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* @var integer
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*/
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const DESC = 'DESC';
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/**
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* Sort By
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*
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* Sorts an array by the specified column, optionally in either direction.
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*
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* @param string $field field to sort by
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* @param array $array array to sort
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* @param string $direction optional direction to sort
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* @retun boolean true because sorting is done by reference
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*/
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public static function by($field, &$array, $direction = Sort::ASC)
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{
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usort($array, create_function('$a, $b', '
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$a = $a["' . $field . '"];
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$b = $b["' . $field . '"];
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if ($a == $b)
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{
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return 0;
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}
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return ($a ' . ($direction == Sort::DESC ? '>' : '<') .' $b) ? -1 : 1;
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'));
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return true;
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}
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}
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