时时商务社区

标题: php专用数组排序类ArraySortUtil用法实例 [打印本页]

作者: yj1281 时间: 2018-2-14 05:47

         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)  $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：
1, "category"=>"Hardware", "subcategory"=>"

ersonal Computer", "supplier" => "DELL", "particular"=>"Vostro 1320", "purchase_price"=>2300, "other_charges"=>500);
$assetData[] = array("id" => 2, "category"=>"Hardware", "subcategory"=>"

ersonal 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。


您可能感兴趣的文章:

php array_map array_multisort 高效处理多维数组排序

php关于array_multisort多维数组排序的使用说明

array_multisort实现PHP多维数组排序示例讲解

php 数组排序 array_multisort与uasort的区别

Sorting Array Values in PHP(数组排序)

php二维数组排序方法(array_multisort usort)

php中array_multisort对多维数组排序的方法

PHP多维数组排序array详解

欢迎光临时时商务社区 (http://bbs.4435.cn/)