<?php 
/**
* ----------------------------------------------------------------------------------------------------------------------
* ARRAY_SORTER.Class.php
*
* @title 		 : Array Sorter Class
* @description   : Handles Sorting of Array
* @engine 	     : PHP 4-5 compatible
* @copyright     : 2011
* ----------------------------------------------------------------------------------------------------------------------
*/

	class AEM_ARRAY_SORTER {
	
		var $sort_fields;
		var $backwards = false;
		var $numeric = false;
	
		function sort() {
			
			$args = func_get_args();
			$array = $args[0];
			
			if (!$array) { 
				return array(); 
			}
			
			$this->sort_fields = array_slice($args, 1);
			
			if (!$this->sort_fields) {
				return $array(); 
			}
		
			if ($this->numeric) {
				usort($array, array($this, 'numericCompare'));
			} else {
				usort($array, array($this, 'stringCompare'));
			}
			
			return $array;
			
		}
	
		function numericCompare($a, $b) {
			
			foreach($this->sort_fields as $sort_field) {
			  
			  if ($a[$sort_field] == $b[$sort_field]) {
				continue;
			  }
			  
			  return ($a[$sort_field] < $b[$sort_field]) ? ($this->backwards ? 1 : -1) : ($this->backwards ? -1 : 1);
			
			}
			
			return 0;
			
		}
	
		function stringCompare($a, $b) {
			
			foreach($this->sort_fields as $sort_field) {
				
				$cmp_result = strcasecmp($a[$sort_field], $b[$sort_field]);
				
				if ($cmp_result == 0) { continue; }
				
				return ($this->backwards ? -$cmp_result : $cmp_result);
			
			}
			
			return 0;
			
		}
	  
	}
	
	$AEM_ARRAY_SORTER = new AEM_ARRAY_SORTER();

?>