創建定義鍵和值的數組

Question

下面的代碼基本上將計算單詞在數組中的出現次數。

我現在想做的是獲取$word ，將其分配為數組的鍵，並分配$WordCount[$word]作為其值。 因此，例如，如果得到一個單詞“ jump”，它將被自動分配為數組的鍵，並且單詞“ jump”的出現次數（ $WordCount[$word] ）將被分配為其數組。值。 有什么建議嗎？

function Count($text)
{
    $text = strtoupper($text);
    $WordCount = str_word_count($text, 2);

    foreach($WordCount as $word)
    {   
        $WordCount[$word] = isset($WordCount[$word]) ? $WordCount[$word] + 1 : 1;
        echo "{$word} has occured {$WordCount[$word]} time(s) in the text <br/>";                       
    }
}

Answer 1

試試這個代碼：

<?php

$str = 'hello is my favorite word.  hello to you, hello to me.  hello is a good word';

$words = str_word_count($str, 1);

$counts = array();
foreach($words as $word) {
    if (!isset($counts[$word])) $counts[$word] = 0;
    $counts[$word]++;
}

print_r($counts);

輸出：

Array
(
    [hello] => 4
    [is] => 2
    [my] => 1
    [favorite] => 1
    [word] => 2
    [to] => 2
    [you] => 1
    [me] => 1
    [a] => 1
    [good] => 1
)

在將所有單詞完全分組在一起之前，您無法在循環內回顯計數值。