字符串中出现次数最多的 PHP 单词

Question

我应该在句子中找到出现最多的单词。

这是我尝试过的，但不起作用。

<?php
$str = "Hello friend, Hello good  good today!";
$time=array();
$cnt=str_word_count($str, 1);
$times=reset($cnt);
$count=0;
foreach($cnt as $val){
    $times=$val;    
    foreach($cnt as $val){
        if($times===$val){
            $count++;
            $times=$times . $count;     
        }       
    }
    $count=0;
}
print_r($cnt);
print_r($times);    

Answer 1

<?php
$str = "Hello friend, Hello good  good today!";
$count = array();
$words = array();
$cnt = str_word_count($str, 1);
foreach ($cnt as $val){
    $i = 0;
    $term = false;
    foreach ($words as $word){
        if ($word === $val){
            $count[$i]++;
            $term = true;
            break;
        }
        $i++;
    }
    if ($term)
        continue;
    $words[$i] = $val;
    $count[$i] = 1;
}
print_r($cnt);
print_r('<br/>');
$max = -1;
$resultWords = array();
$resultCount = array();
$i = 0;
foreach ($count as $c){
    if ($max == $c){
        $resultWords[] = $words[$i];
        $resultCount[] = $c;
    }else if ($max < $c){
        $resultWords = array();
        $resultCount = array();
        $resultWords[] = $words[$i];
        $resultCount[] = $c;
        $max = $c;
    }
    $i++;
}
foreach ($resultWords as $result){
    print_r($result.' '.$max.'<br/>');
}
?>

尝试使用我上面的代码。希望它会起作用。如果出现次数最多的词只有一个词，则将显示该词以及该词的出现次数。如果有多个单词，则所有单词将显示为出现次数。