本文实例讲述了php专用数组排序类ArraySortUtil用法。分享给大家供大家参考。具体如下：

**

* 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;

}

}

使用范例如下：

require_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 "

multisort:result

";

echo "

";

print_r($sorted);

echo "

";

$sorted = ArraySortUtil::uasort($assetData, array(

array("field"=>"category"),

array("field"=>"subcategory", "order" => true) // desc

));

echo "

uasort:result

";

echo "

";

print_r($sorted);

echo "

";

希望本文所述对大家的php程序设计有所帮助。