PHP获取数组中重复次数最多的值

Question

我在数组中有一个数组，如下所示:

Array
(
    [0] => Array
        (
            [name] => B
            [id] => 924572
        )

    [1] => Array
        (
            [name] => A
            [id] => 120689
        )

    [2] => Array
        (
            [name] => A 
            [id] => 120689
        )

    [3] => Array
        (
            [name] => C
            [id] => 919644
        )

    [4] => Array
        (
            [name] => A
            [id] => 120689
        )

    [5] => Array
        (
            [name] => B
            [id] => 924572
        )
)

如何从名为 name 和 id 的对象中获取最多重复的值？

我已经尝试过下面的代码，但收到错误:警告:array_count_values():只能计算 STRING 和 INTEGER 值!

$count = array_count_values($info);
arsort($count);
$popular = array_keys($count);
echo $popular[0];

有解决这个问题的方法吗？

Answer 1

用于搜索最重复对的“序列化方式”(name，id):

$out = array();
foreach($arr as $el){
   $key = serialize($el);
   if (!isset($out[$key]))
       $out[$key]=1;
   else
       $out[$key]++;
}

arsort($out);

foreach($out as $el=>$count){
   $item = unserialize($el);
   echo "Name = ".$item['name'].' ID = '.$item['id'].' Count = '.$count.'<br/>';
}

输出:

Name = A ID = 120689 Count = 3
Name = B ID = 924572 Count = 2
Name = C ID = 919644 Count = 1

更新不循环

.....
arsort($out);

$most  = unserialize(key($out));
$most_count = array_shift($out);

echo $most['name'];
echo $most['id'];
echo $most_count;

输出:

A
120689
3