php 多维（三）数组指定字段排序

例子：

<?php 
	$arr = array(
	  0=>
	  array(
		"id"=>"1208",
		"fromid"=>"2",
		"froms"=>"strategy",
		"name"=>"",
		"sort"=>"1"
	  ),
	  1=>
	  array(
		"id"=>"1209",
		"fromid"=>"3",
		"froms"=>"strategy",
		"name"=>"",
		"sort"=>"7"
	  ),
	  2=>
	  array(
		"id"=>"1210",
		"fromid"=>"271",
		"froms"=>"tag",
		"name"=>"BC",
		"sort"=>"2"
	  ),
	  3=>
	  array (
		"id"=>"1211",
		"fromid"=>"263",
		"froms"=>"tag",
		"name"=>"777",
		"sort"=>"3"
	  ),
	  4=>
	  array (
		"id"=>"1212",
		"fromid"=>"262",
		"froms"=>"tag",
		"name"=>"6666",
		"sort"=>"5"
	  ),
	  5=>
	  array (
		"choosecardtypeid"=>"1",
		"fromid"=>"114",
		"froms"=>"tagtype",
		"sort"=>"4",
		"name"=>"你还打算的"
	  ),
	  6=>
	  array (
		"choosecardtypeid"=>"1",
		"fromid"=>"115",
	   "froms"=>"tagtype",
		"sort"=>"6",
		"name"=> "呵呵呵"
	  )
	);
	
function multi_array_sort($multi_array,$sort_key,$sort=SORT_ASC){ 
    if(is_array($multi_array)){ 
        foreach ($multi_array as $row_array){ 
            if(is_array($row_array)){ 
                $key_array[] = $row_array[$sort_key]; 
            }else{ 
                return false; 
            } 
        } 
    }else{ 
        return false; 
    } 
    array_multisort($key_array,$sort,$multi_array); 
    return $multi_array; 
} 
	
	print_r(multi_array_sort($arr,'sort'));