PHP实现二维数组根据key进行排序的方法

<?php/** * ======================================= * Created by Zhihua_W. * Author: Zhihua_W * Date: 2016/11/26 0002 * Time: 下午 2:43 * Project: PHP开发小技巧 * Power: 实现二维数组根据key进行排序 * ======================================= *//** * 二维数组排序 * @param array $arr 需要排序的二维数组 * @param string $keys 所根据排序的key * @param string $type 排序类型，desc、asc * @return array $new_array 排好序的结果 */function array_sort($arr, $keys, $type = 'desc'){  $key_value = $new_array = array();  foreach ($arr as $k => $v) {    $key_value[$k] = $v[$keys];  }  if ($type == 'asc') {    asort($key_value);  } else {    arsort($key_value);  }  reset($key_value);  foreach ($key_value as $k => $v) {    $new_array[$k] = $arr[$k];  }  return $new_array;}$arr = array(  array(    'name' => 'a',    'sex' => 'm',    'sort' => 5  ),  array(    'name' => 'c',    'sex' => 'm',    'sort' => 8  ),  array(    'name' => 'g',    'sex' => 'm',    'sort' => 3  ),  array(    'name' => 'e',    'sex' => 'w',    'sort' => 6  ),  array(    'name' => 'b',    'sex' => 'w',    'sort' => 2  ),);//打印出原数组print_r($arr);//打印出排好序的数组print_r(array_sort($arr,'name'));?>

//原数组Array(  [0] => Array    (      [name] => a      [sex] => m      [sort] => 5    )  [1] => Array    (      [name] => c      [sex] => m      [sort] => 8    )  [2] => Array    (      [name] => g      [sex] => m      [sort] => 3    )  [3] => Array    (      [name] => e      [sex] => w      [sort] => 6    )  [4] => Array    (      [name] => b      [sex] => w      [sort] => 2    ))//排序后数组Array(  [2] => Array    (      [name] => g      [sex] => m      [sort] => 3    )  [3] => Array    (      [name] => e      [sex] => w      [sort] => 6    )  [1] => Array    (      [name] => c      [sex] => m      [sort] => 8    )  [4] => Array    (      [name] => b      [sex] => w      [sort] => 2    )  [0] => Array    (      [name] => a      [sex] => m      [sort] => 5    ))