javascript - 从 PHP 中的拆分文本中获取出现次数最多的前 5 个内容

Question

我对这段代码有疑问。我想在 php 中获取分割文本中计数最多的单词，有人可以帮助我吗？代码显示它给出了分割文本的输出，我使用 php 的 count 函数来获取每个特定单词的准确计数，问题是我想获得计数最多的单词，至少有前 5 个单词，因为我将使用此函数用于制作图表或分析图

Picture of expected output

<?php
$str = "one two three four five six set one two three four five six set one three four five six set one two three four five six set";
$a = preg_split("/[\s]/", $str);
foreach($a as $arr)
{
	echo $arr."<br>";
}


?>

<?php
$text = $str;

// $words = str_word_count($text, 1); // use this function if you only want ASCII
$words = utf8_str_word_count($text, 1); // use this function if you care about i18n

$frequency = array_count_values($words);

arsort($frequency);

echo '<pre>';
print_r($frequency);
echo '</pre>';


function utf8_str_word_count($string, $format = 0, $charlist = null)
{
    $result = array();

    if (preg_match_all('~[\p{L}\p{Mn}\p{Pd}\'\x{2019}' . preg_quote($charlist, '~') . ']+~u', $string, $result) > 0)
    {
        if (array_key_exists(0, $result) === true)
        {
            $result = $result[0];
        }
    }

    if ($format == 0)
    {
        $result = count($result);
    }

    return $result;
}


?>

<?php

$interesting = array($arr);
$string = "one two three four five six six six six six set one two three four five six set one three four five six set one two three four five six set one one one one";

// Explode into array
$array = explode(" ", $string);

// Group the values 
$count = array_count_values($array); 

// Sort the grouping by highest occurence to lowest
arsort($count);

// Get the keys of the most occurring
$keys = array_keys($count);

// compare key against the $interesting array for what you're interested in
$most_occurring = '';
foreach ($keys as $i) {
  if (in_array($i, $interesting, true)) {
      $most_occurring = $i;
      break;
  }
}

// Print output
echo "Most occurring $most_occurring, $count[$most_occurring] occurences.";

?>

Answer 1

这样的事情怎么样？

1. explode 将字符串转换为数组
2. array_count_values 计算受骗者的数量
3. arsort 对数组进行排序
4. array_slice 分块获得前 5 名

代码:

$str = "one two three four five six set one two three four five six set one three four five six set one two three four five six set";
$arr = explode(' ', $str);
$vals = array_count_values($arr);
arsort($vals);
$top_5 = array_slice($vals, 0, 5); 
print_r($top_5);