PHP 使用二维数组实现SQL的ORDER BY排序的方法

经测试代码如下：

<?PHP
/**
 *
 * @package BugFree
 * @version $Id: FunctionsMain.inc.PHP,v 1.32 2005/09/24 11:38:37 wwccss Exp $

Sort an two-dimension array by some level two items use array_multisort() function.

sysSortArray($Array,Key1,SORT_ASC,SORT_RETULAR,Key2……)
 * @author Chunsheng Wang <[e-mail]>
 * @param array $ArrayData the array to sort.
 * @param string $KeyName1 the first item to sort by.
 * @param string $SortOrder1 the order to sort by(SORT_ASC|SORT_DESC)
 * @param string $SortType1 the sort type(SORT_REGULAR|SORT_NUMERIC|SORT_STRING)
 * @return array sorted array.
 */
function sysSortArray($ArrayData,$KeyName1,$SortOrder1 = SORT_ASC,$SortType1 = SORT_REGULAR)
{
     if(!is_array($ArrayData))
        {
         return $ArrayData;
         }
  
     // Get args number.
    $ArgCount = func_num_args();
  
     // Get keys to sort by and put them to SortRule array.
    for($I = 1;$I < $ArgCount;$I ++)
    {
         $Arg = func_get_arg($I);
         if(!eregi(SORT,$Arg))
            {
             $KeyNameList[] = $Arg;
             $SortRule[] = '$' . $Arg;
             }
        else
            {
             $SortRule[] = $Arg;
             }
         }
  
     // Get the values according to the keys and put them to array.
    foreach($ArrayData AS $Key => $Info)
    {
         foreach($KeyNameList AS $KeyName)
        {
             ${$KeyName}[$Key] = $Info[$KeyName];
             }
         }
  
     // Create the eval string and eval it.
    $EvalString = 'array_multisort(' . join(,,$SortRule) . ',$ArrayData);';
     eval ($EvalString);
     return $ArrayData;
    }

// ################# 示例 #################
$arr = array(
    array(
        'name' => '学习','size' => '1235','type' => 'jpe','time' => '1921-11-13','class' => 'dd',),array(
        'name' => '中国功夫','size' => '153','time' => '2005-11-13','class' => 'jj',array(
        'name' => '编程','size' => '35','type' => 'gif','time' => '1997-11-13','size' => '65','time' => '1925-02-13','class' => 'yy','size' => '5','type' => 'icon','time' => '1967-12-13','class' => 'rr',);

print_r($arr);

// 注意：按照数字方式排序时 153 比 65 小
$temp = sysSortArray($arr,name,type,SORT_DESC,size,SORT_STRING);

print_r($temp);

?>



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