在多维数组PHP中计算文档频率

我有一个这样的数组

 Array ( 
        [0] => Array ( [id_doc] => 1 [term] => curi ) 
        [1] => Array ( [id_doc] => 1 [term] => tidur ) 
        [2] => Array ( [id_doc] => 1 [term] => kamar ) 
        [3] => Array ( [id_doc] => 2 [term] => curi ) 
        [4] => Array ( [id_doc] => 2 [term] => cela ) 
        [5] => Array ( [id_doc] => 2 [term] => hukum ) 
        [6] => Array ( [id_doc] => 3 [term] => nyanyi ) 
        [7] => Array ( [id_doc] => 3 [term] => dangdut ) 
        [8] => Array ( [id_doc] => 3 [term] => curi )   
    ) 

如何从这些文档上的术语获取文档频率计数。我想要这样的输出

Array ( 
        [0] => Array ( [id_doc] => 1 [term] => curi [doc_frequency] => 3 ) 
        [1] => Array ( [id_doc] => 1 [term] => tidur [doc_frequency] => 1 ) 
        [2] => Array ( [id_doc] => 1 [term] => kamar [doc_frequency] => 1 ) 
        [3] => Array ( [id_doc] => 2 [term] => curi [doc_frequency] => 3 ) 
        [4] => Array ( [id_doc] => 2 [term] => cela [doc_frequency] => 1 ) 
        [5] => Array ( [id_doc] => 2 [term] => hukum [doc_frequency] => 1 ) 
        [6] => Array ( [id_doc] => 3 [term] => nyanyi [doc_frequency] => 1 ) 
        [7] => Array ( [id_doc] => 3 [term] => dangdut [doc_frequency] => 1 ) 
        [8] => Array ( [id_doc] => 3 [term] => curi [doc_frequency] => 3 )  
    ) 

所以术语“居里”有3个文档频率，因为它出现在3个文档上。 我试过这个

$count_df = array_count_values(array_map(function($item) {
   return $item['term'];
}, $dokumen_frek));
print_r($count_df);

但结果是

Array ( 
[curi] => 3 
[tidur] => 1 
[kamar] => 1 
[cela] => 1 
[hukum] => 1 
[nyanyi] => 1 
[dangdut] => 1 

)使用函数

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StackOverflow期待您的支持，我们也希望您的支持。请更新您的问题，以显示您已在某个应用程序中尝试过的内容。有关更多信息，请参阅，并使用：）使用关联数组，其键为文档名称，值为频率。循环遍历数组，并使用当前名称增加元素的频率。完成后，您可以将频率添加到原始阵列。检查此项

$terms = array_count_values(array_column($arr, 'term'));

foreach($arr as &$x) {
   $x['doc_frequency'] = $terms[$x['term']];
}