php专用数组排序类ArraySortUtil用法实例
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：
**
*ArraySortUtilisaarraysortutility,youcanextendsthesortingengine.
*
*@version0.1
*@packageutility.sort
*/
classArraySortUtil
{
staticfunctionuasort($unsort,$fields)
{
if(!is_array($unsort)||sizeof($unsort)<=0)return$unsort;
$sorted=uasortEngine::uasort($unsort,$fields);
return$sorted;
}
staticfunctionmultisort($unsort,$fields)
{
if(!is_array($unsort)||sizeof($unsort)<=0)return$unsort;
$sorted=multisortEngine::multisort($unsort,$fields);
return$sorted;
}
}
classmultisortEngine
{
staticfunctionmultisort($unsort,$fields)
{
$sorted=$unsort;
if(is_array($unsort))
{
$loadFields=array();
foreach($fieldsas$sortfield)
{
$loadFields["field"][]=array(
"name"=>$sortfield["field"],
"order"=>$sortfield["order"],
"nature"=>$sortfield["nature"],
"caseSensitve"=>$sortfield["caseSensitve"]
);
$loadFields["data"][$field["field"]]=array();
}
//Obtainalistofcolumns
foreach($sortedas$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;
}
}
classuasortEngine
{
staticprivate$caseSensitve=false;
staticprivate$sortfields=array();
staticprivate$sortorder=true;
staticprivate$nature=false;
staticprivatefunctionuasort_callback(&$a,&$b)
{
foreach(self::$sortfieldsas$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$compare;
}
staticfunctionuasort($unsort,$fields)
{
self::$sortfields=$fields;
$sorted=$unsort;
uasort($sorted,array('uasortEngine','uasort_callback'));
return$sorted;
}
}
使用范例如下：
<?php
require_once('class.ArraySortUtil.php');
//declaretestdata
$assetData[]=array("id"=>1,"category"=>"Hardware","subcategory"=>"PersonalComputer","supplier"=>"DELL","particular"=>"Vostro1320","purchase_price"=>2300,"other_charges"=>500);
$assetData[]=array("id"=>2,"category"=>"Hardware","subcategory"=>"PersonalComputer","supplier"=>"DELL","particular"=>"Vostro1420","purchase_price"=>2500,"other_charges"=>0);
$assetData[]=array("id"=>3,"category"=>"Hardware","subcategory"=>"Laptop","supplier"=>"DELL","particular"=>"Vostro1520","purchase_price"=>4500,"other_charges"=>100);
$assetData[]=array("id"=>4,"category"=>"Hardware","subcategory"=>"Laptop","supplier"=>"Acer","particular"=>"ApireOne","purchase_price"=>2500,"other_charges"=>200);
$assetData[]=array("id"=>5,"category"=>"Furniture","subcategory"=>"Table","supplier"=>"CHEN","particular"=>"ManagerTable","purchase_price"=>1000,"other_charges"=>0);
$assetData[]=array("id"=>6,"category"=>"Furniture","subcategory"=>"Table","supplier"=>"CHEN","particular"=>"StaffTable","purchase_price"=>500,"other_charges"=>0);
$assetData[]=array("id"=>7,"category"=>"Furniture","subcategory"=>"Chair","supplier"=>"CHEN","particular"=>"StaffChair","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>";
希望本文所述对大家的php程序设计有所帮助。