循環後排序多維數組

Question

我想按用戶點排序我的數組。從高到低。完成循環後，我已經得到低於價值。

Array( [0] => Array 
     (
      [name] => test1 
      [points_of_usrs] => 182 
      [avatar] => 8f7036bce1f02648eea38b71ded64aea_medium.jpg 
     ) 

    [1] => Array 
     (
      [name] => test 
      [points_of_usrs] => 1095 
      [avatar] => d3644f378eae3675e67b50b44a2fe4ab_medium.jpg 
     ) 

    [2] => Array 
     (
      [name] => test2 
      [points_of_usrs] => 10 
      [avatar] => 
     )) 

，我想解決這陣像下面

Array([0] => Array 
     (
      [name] => test 
      [points_of_usrs] => 1095 
      [avatar] => d3644f378eae3675e67b50b44a2fe4ab_medium.jpg 
     ) 

    [1] => Array 
     (
      [name] => test1 
      [points_of_usrs] => 182 
      [avatar] => 8f7036bce1f02648eea38b71ded64aea_medium.jpg 
     ) 

    [2] => Array 
     (
      [name] => test2 
      [points_of_usrs] => 10 
      [avatar] => 
     )) 

分類由高到低的用戶分。

Answer 1

使用usort函數。

（P碼）

function sortit($a, $b) 
{ 
    if($a->points_of_usrs == $b->points_of_usrs) return 0; 
    else return ($a->points_of_usrs - $b->points_of_usrs) 
} 

usort($array, "sortit");