PHP 数组按多个字段排序实现代码

$array1 = array(
      0=>array('id'=>8,'name'=>'Apple','age'=> 18),
      1=>array('id'=>8,'name'=>'Bed','age'=>17),
      2=>array('id'=>5,'name'=>'Cos','age'=>16),
      3=>array('id'=>5,'name'=>'Cos','age'=>14)
);
function sortArrByManyField(){
  $args = func_get_args(); // 获取函数的参数的数组
  if(empty($args)){
    return null;
  }
  $arr = array_shift($args);
  if(!is_array($arr)){
    throw new Exception("第一个参数不为数组");
  }
  foreach($args as $key => $field){
    if(is_string($field)){
      $temp = array();
      foreach($arr as $index=> $val){
        $temp[$index] = $val[$field];
      }
      $args[$key] = $temp;
    }
  }
  $args[] = &$arr;//引用值
  call_user_func_array('array_multisort',$args);
  return array_pop($args);
}
$arr = sortArrByManyField($array1,'id',SORT_ASC,'name',SORT_ASC,'age',SORT_DESC);
print_r($arr);

<span style="color: #008080;"> array(4) {<br/>      [0]=>array(3) {<br/>            ["id"]=>int(5)<br/>            ["name"]=>string(3) "Cos"<br/>            ["age"]=>int(16)<br/>          }<br/>      [1]=>array(3) {<br/>            ["id"]=>int(5)<br/>            ["name"]=>string(3) "Cos"<br/>            ["age"]=>int(14)<br/>          }<br/>      [2]=>array(3) {<br/>            ["id"]=>int(8)<br/>            ["name"]=>string(5) "Apple"<br/>            ["age"]=>int(18)<br/>          }<br/>      [3]=>array(3) {<br/>            ["id"]=>int(8)<br/>            ["name"]=>string(3) "Bed"<br/>            ["age"]=>int(17)<br/>      }<br/>    }</span><span style="color: #008080;"><br/></span>