在PHP数组的数组中计数匹配项

有一个这样的数组。我正在努力数一数所有的比赛。现在我正在使用

Array
(
    [0] => Array
    (
        [song] => More Than A Feeling
        [artist] => Not Boston
        [time] => 15:00
    )

    [1] => Array
    (
        [song] => More Than A Feeling
        [artist] => Boston
        [time] => 11:20
    )
    [2] => Array
    (
        [song] => More Than A Feeling
        [artist] => Boston
        [time] => 15:23
    )
)

这很好，但如果艺术家不匹配，它会计算歌曲数。我试图输出以下内容

array_count_values(array_column($arr, 'song'));

---

不知道从哪里开始。谢谢你的帮助

在一个简单的循环中手动执行。我将搜索

$songs

数组，并将元素添加到

$songCounters

中，没有重复项。输出

$songCounters

数组将同时包含歌曲和计数，其顺序是将计数作为歌曲的下一个元素

Array
    (
    [0] => Array
    (
        [song] => More Than A Feeling
        [artist] => Not Boston
        [count] => 1
    )

    [1] => Array
    (
        [song] => More Than A Feeling
        [artist] => Boston
        [count] => 2
    )
)

代码如下：

[(song)(count)(song)(count)]

---

这是php。

找到了另一个问题的答案。这对我有用

//Here is your input array
$songs = array(0 => array('song' => 'More Than A Feeling', 'artist' => 'Not Boston', 'time' => 0), 
               1 => array('song' => 'More Than A Feeling', 'artist' => 'Boston', 'time' => 0), 
               2 => array('song' => 'More Than A Feeling', 'artist' => 'Boston', 'time' => 0));


$songCounters = array();    //Initialize the output array


//Now lets go through the input array
foreach($songs as $song) {

    //Prepare the current song
    $currentSong = array('song' => $song['song'], 'artist' => $song['artist']);


    //Get the index of the current song from $songCounters
    $index = array_search($currentSong, $songCounters);

    //Insert if not found
    if ($index == false) {
        array_push($songCounters, $currentSong);
        array_push($songCounters, 1);       //Next element is the counter
    }       
    else {
        $songCounters[$index + 1]++;    //Increase the counter if found
    } 

}    

print_r($songCounters);

}

---

这类工作。给了我一些工作。我试图将计数添加到原始歌曲数组中，而不是您的。它将计数放在一个单独的数组中。之后我将无法对数组进行排序。但谢谢，这可能会帮助我进一步。无论如何，您需要一个单独的数组来输出。这就是使用另一个数组执行此操作的原因。

$arr = array(0 => array('song' => 'More Than A Feeling', 'artist' => 'Not Boston', 'time' => 0), 
           1 => array('song' => 'More Than A Feeling', 'artist' => 'Boston', 'time' => 0), 
           2 => array('song' => 'More Than A Feeling', 'artist' => 'Boston', 'time' => 0));


$hash = array();
$array_out = array();

foreach($arr as $item) {
    $hash_key = $item['song'].'|'.$item['artist'];
    if(!array_key_exists($hash_key, $hash)) {
        $hash[$hash_key] = sizeof($array_out);
        array_push($array_out, array(
            'song' => $item['song'],
            'artist' => $item['artist'],
            'count' => 0,
    ));
}
$array_out[$hash[$hash_key]]['count'] += 1;

 var_dump($array_out);