如何计算每个循环中的键 - How can I count the keys inside a for each loop?

How can I count the keys inside a for each loop?

本文关键字：循环何计算计算 | 更新日期: 2023-09-27

    function findKey($array, $keySearch) {
        $count = 0;
        foreach ($array as $key => $item) {
            if (stripos($key, $keySearch) !== false){
            $count++;
            echo "<li>".$key."</li>";
                }
            if (is_array($item)){
               findKey($item, $keySearch); 
            }
        } 
        echo "Total number of keys: ".$count;       
    }
echo findKey($array, $keySearch);

我尝试为每个循环计算我里面的键。但我的结果是

香蕉

苹果

橙

密钥总数：0010101000

我做错了什么？

   function findKey($array, $keySearch) {
        global $count;
        foreach ($array as $key => $item) {
            if (stripos($key, $keySearch) !== false){
            $count++;
            echo "<li>".$key."</li>";
                }
            if (is_array($item)){
               findKey($item, $keySearch); 
            }
        } 
    }
$count = 0;
findKey($array, $keySearch);
echo "Total number of keys: ".$count;