如何检索与PHP特定的重复数组值 [英] How retrieve specific duplicate array values with PHP

问题描述

$array = array(
array(
    'id' => 1,
    'name' => 'John Doe',
    'upline' => 0
),
array(
    'id' => 2,
    'name' => 'Jerry Maxwell',
    'upline' => 1
),
array(
    'id' => 3,
    'name' => 'Roseann Solano',
    'upline' => 1
),
array(
    'id' => 4,
    'name' => 'Joshua Doe',
    'upline' => 1
),
array(
    'id' => 5,
    'name' => 'Ford Maxwell',
    'upline' => 1
),
array(
    'id' => 6,
    'name' => 'Ryan Solano',
    'upline' => 1
),
array(
    'id' =>7,
    'name' => 'John Mayer',
    'upline' => 3
),

）;
我想做出这样的函数：

); I want to make a function like:

function get_downline($userid,$users_array){
}

然后我想返回的值作为$用户ID用户的所有上线键的数组。我希望有人可以帮助。请拜托......

Then i want to return an array of all the user's upline key with the value as $userid. I hope anyone can help. Please please...

推荐答案

如果你需要做的搜索直通你的阵列由$ ID：

If you need do search thru yours array by $id:

foreach($array as $value)
{
   $user_id = $value["id"];
   $userName = $value["name"];
   $some_key++;

   $users_array[$user_id] = array("name" => $userName, "upline" => '1');
}

function get_downline($user_id, $users_array){
     foreach($users_array as $key => $value)
     {
         if($key == $user_id)
         {
              echo $value["name"];
              ...do something else.....
         }
     }
}

或'上线'搜索：

function get_downline($search_upline, $users_array){
         foreach($users_array as $key => $value)
         {
             $user_upline = $value["upline"];
             if($user_upline == $search_upline)
             {
                  echo $value["name"];
                  ...do something else.....
             }
         }
    }

这篇关于如何检索与PHP特定的重复数组值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！