PHP数组关键字Tally - PHP Array Keyword Tally

PHP Array Keyword Tally

本文关键字：Tally 关键字数组 PHP | 更新日期: 2024-01-04

我有一个数组：

[873] => Array
    (
        [id] => 873
        [email] => 
        [data] => Array
            (
                [#1] => Dmitri Vegas & Like Mike
                [#2] => Hardwell
                [#3] => w&w
                [#4] => alesso
                [#5] => tiesto
                [#6] => nicky romero
                [#7] => dannic
                [#8] => dj alvaro
                [#9] => dvbbs
                [#10] => sandro silva
            )
    )
[872] => Array
    (
        [id] => 872
        [email] => 
        [data] => Array
            (
                [#1] => nervo
                [#2] => axwell
                [#3] => armin van buuren
                [#4] => tjr
                [#5] => w&w
                [#6] => deadmau5
                [#7] => markus shulz
                [#8] => chuckie
                [#9] => alesso
                [#10] => dada life
            )
    )
[871] => Array
    (
        [id] => 871
        [email] => 
        [data] => Array
            (
                [#1] => Noise controllers 
                [#2] => Noise controllers 
                [#3] => Noise crontrollers
                [#4] => Zatox
                [#5] => Zatox
                [#6] => Zatox
                [#7] => Zatox
                [#8] => Hardwell
                [#9] => Noisia
                [#10] => Noisia
            )
    )

基本上，我想做的是以计数类型的格式跟踪关键字，有点像

Hardwell -> 2
w&w -> 2
tjr -> 1
etc etc

我知道我必须用in_array()搜索数组，看看关键字出现了多少次，但我不知道从哪里开始

我很想把它们输出到一个列表中，根据哪个值的数字最高，我有点困惑。有人能告诉我该怎么做吗？

这可以使用array_count_values():实现

$keywords = array();
foreach ($data as $key => $sub) {
    foreach ($sub['data'] as $key => $value) {
        $keywords[] = $value;
    }
}
$result = array_count_values($keywords);
print_r($result);

$result将是一个包含所有值和出现次数的数组。如果您还想显示发生的次数，您可以简单地循环$result数组：

foreach ($result as $value => $number) {
    echo "$value was found $number times".PHP_EOL;
}

演示

$array = array(
  array('data' => array('asd','abc')),
  array('data' => array('abc','cde')),
  array('data' => array('cde','dfe'))
);
$data_array = array();
foreach ($array as $arr) {
  if (is_array($arr['data']))
    $data_array = array_merge($data_array, $arr['data']);
  else
    array_push($data_array, $arr['data']);
}
$new_arr = array_count_values($data_array);
arsort($new_arr);
print_r($new_arr);

https://eval.in/76116