找出结果数组Codeigniter中重复值的总数 - Find out total count of duplicate value in result array Codeigniter

Find out total count of duplicate value in result array Codeigniter

本文关键字：结果数组 Codeigniter | 更新日期: 2023-09-27

我试图找到在codeigniter中从活动记录收到的结果中重复值的计数。

For example:
1 => 12
2 => 21
3 => 22
4 => 21
5 => 12
6 => 45

有没有一种方法可以让我们找出总数，从而得到12 = 1,21 = 2,22 = 1,12 = 2,45 =1等等?

Codeigniter的方式将是伟大的，但我也对PHP的方式开放。

OK array_count_values不适合下面的数组:

Array
(
    [0] => Array
        (
            [key_id] => 1790
            [key_name] => printer brisbane
            [link_id] => 1130
            [link_url] => 99cards.com
        )
    [1] => Array
        (
            [key_id] => 1982
            [key_name] => test
            [link_id] => 1130
            [link_url] => 99cards.com
        )
)

是否有一种方法可以发现link_id count是2?

我自己找到了答案。下面是代码:

$e = 0;
            foreach ($q as $qs){
                $i = 1;
                foreach ($q as $qss){
                    if($qss['link_id'] == $qs['link_id']){
                        $q[$e]['link_count'] = $i;
                    }
                    $i++;
                }
                $e++;
            }

array_count_values()为此目的而制造

it返回一个关联数组，其中输入的值作为键，它们的计数作为值。

$array = array(1, "hello", 1, "world", "hello"); 
print_r(array_count_values($array));

上面的示例将输出:

Array (
    [1] => 2
    [hello] => 2
    [world] => 1 )

我们可以手动执行如下操作:

$count_array = array();
foreach($results as $result)
{
    $link_id = $result['link_id'];
    if(isset($count_array[$link_id]))
    {
        $count_array[$link_id] = $count_array[$link_id]+1;
    }
    else
    {
        $count_array[$link_id] = 1;
    }
}