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** * ArraySortUtil is a array sort utility, you can extends the sorting engine. * * @version 0.1 * @package utility.sort */class ArraySortUtil{ static function uasort（$unsort, $fields） {if （ ！is_array（$unsort） || sizeof（$unsort） <= 0 ） return $unsort;$sorted = uasortEngine::uasort（$unsort, $fields）;return $sorted; } static function multisort（$unsort, $fields） {if （ ！is_array（$unsort） || sizeof（$unsort） <= 0 ） return $unsort;$sorted = multisortEngine::multisort（$unsort, $fields）;return $sorted; }}class multisortEngine{ static function multisort（$unsort, $fields） {$sorted = $unsort;if （is_array（$unsort））{ $loadFields = array（）; foreach（$fields as $sortfield） {$loadFields["field"][] = array（"name" => $sortfield["field"],"order" => $sortfield["order"],"nature" => $sortfield["nature"],"caseSensitve" => $sortfield["caseSensitve"]）;$loadFields["data"][$field["field"]] = array（）; } // Obtain a list of columns foreach （$sorted as $key => $row） {foreach（$loadFields["field"] as $field） { $value = $row[$field["name"]]; $loadFields["data"][$field["name"]][$key] = $value;} } $parameters = array（）; foreach（$loadFields["field"] as $sortfield） {$array_data = $loadFields["data"][$sortfield["name"]];$caseSensitve = （ $sortfield["caseSensitve"] == null ） ? $sortfield["caseSensitve"] : false;if （！$caseSensitve） $array_data = array_map（"strtolower", $array_data）;$parameters[] = $array_data;if （ $sortfield["order"] ！= null ） $parameters[] = （ $sortfield["order"] ） ? SORT_DESC : SORT_ASC;if （ $sortfield["nature"] ！= null ） $parameters[] = （ $sortfield["nature"] ） ? SORT_REGULAR : SORT_STRING; } $parameters[] = &$sorted; call_user_func_array（"array_multisort", $parameters）;}return $sorted; }}class uasortEngine{ static private $caseSensitve = false; static private $sortfields = array（）; static private $sortorder = true; static private $nature = false; static private function uasort_callback（&$a, &$b） {foreach（self::$sortfields as $sortfield）{ $_field = $sortfield["field"]; $_order = isset（$sortfield["order"]） ? $sortfield["order"] : self::$sortorder; $_caseSensitve = isset（$sortfield["caseSensitve"]） ? $sortfield["caseSensitve"] : self::$caseSensitve; $_nature = isset（$sortfield["nature"]） ? $sortfield["nature"] : self::$nature; if （$_field ！= ""） {$retval = 0;if （$_nature）{ if （$_caseSensitve） {$compare = strnatcmp（$a[$_field], $b[$_field]）; } else {$compare = strnatcasecmp（$a[$_field], $b[$_field]）; }}else{ if （$_caseSensitve） {$compare = strcmp（$a[$_field], $b[$_field]）; } else {$compare = strcasecmp（$a[$_field], $b[$_field]）; }}if （$compare ！== 0 && ！$_order） $compare = （$compare > 0） ? -1 : 1; } if （$compare ！== 0） break;}return $compare; } static function uasort（$unsort, $fields） {self::$sortfields = $fields;$sorted = $unsort;uasort（$sorted, array（"uasortEngine", "uasort_callback"））;return $sorted; }}

<?phprequire_once（"class.ArraySortUtil.php"）;// declare test data$assetData[] = array（"id" => 1, "category"=>"Hardware", "subcategory"=>"Personal Computer", "supplier" => "DELL", "particular"=>"Vostro 1320", "purchase_price"=>2300, "other_charges"=>500）;$assetData[] = array（"id" => 2, "category"=>"Hardware", "subcategory"=>"Personal Computer", "supplier" => "DELL", "particular"=>"Vostro 1420", "purchase_price"=>2500, "other_charges"=>0）;$assetData[] = array（"id" => 3, "category"=>"Hardware", "subcategory"=>"Laptop", "supplier" => "DELL", "particular"=>"Vostro 1520", "purchase_price"=>4500, "other_charges"=>100）;$assetData[] = array（"id" => 4, "category"=>"Hardware", "subcategory"=>"Laptop", "supplier" => "Acer", "particular"=>"Apire One", "purchase_price"=>2500, "other_charges"=>200）;$assetData[] = array（"id" => 5, "category"=>"Furniture", "subcategory"=>"Table", "supplier" => "CHEN", "particular"=>"Manager Table", "purchase_price"=>1000, "other_charges"=>0）;$assetData[] = array（"id" => 6, "category"=>"Furniture", "subcategory"=>"Table", "supplier" => "CHEN", "particular"=>"Staff Table", "purchase_price"=>500, "other_charges"=>0）;$assetData[] = array（"id" => 7, "category"=>"Furniture", "subcategory"=>"Chair", "supplier" => "CHEN", "particular"=>"Staff Chair", "purchase_price"=>500, "other_charges"=>0）;$sorted = ArraySortUtil::multisort（$assetData, array（array（"field"=>"category"）,array（"field"=>"subcategory", "order" => true） // desc ））;echo "<h1>multisort:result</h1>";echo "<pre>"; print_r（$sorted）;echo "</pre>";$sorted = ArraySortUtil::uasort（$assetData, array（array（"field"=>"category"）,array（"field"=>"subcategory", "order" => true） // desc ））;echo "<h1>uasort:result</h1>";echo "<pre>"; print_r（$sorted）;echo "</pre>";