php二维数组排序

一般用于无法通过数据库进行排序的多行数据，不废话了，直接上代码

// 二维数组
$arr = array(
‘d' => array(‘id' => 5, ‘name' => 1, ‘age' => 7),
‘b' => array(‘id' => 2,'name' => 3,'age' => 4),
‘a' => array(‘id' => 8,'name' => 10,'age' => 5),
‘c' => array(‘id' => 1,'name' => 2,'age' => 2)
);

// 排序方法
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;
}

// 调用
print_r(multi_array_sort($arr,'age'));exit;

// 输出
Array
(
[c] => Array
(
[id] => 1
[name] => 2
[age] => 2
)
[b] => Array
(
[id] => 2
[name] => 3
[age] => 4
)
[a] => Array
(
[id] => 8
[name] => 10
[age] => 5
)
[d] => Array
(
[id] => 5
[name] => 1
[age] => 7
)
)