php数组计数值，4个深度数组

// 定义计数器数组
$counter = array();

// 循环遍历每个数组元素
foreach ($array1 as $value) {
    if (isset($counter[$value])) {
        $counter[$value]++;
    } else {
        $counter[$value] = 1;
    }
}

foreach ($array2 as $value) {
    if (isset($counter[$value])) {
        $counter[$value]++;
    } else {
        $counter[$value] = 1;
    }
}

foreach ($array3 as $value) {
    if (isset($counter[$value])) {
        $counter[$value]++;
    } else {
        $counter[$value] = 1;
    }
}

foreach ($array4 as $value) {
    if (isset($counter[$value])) {
        $counter[$value]++;
    } else {
        $counter[$value] = 1;
    }
}

// 输出计数器数组
print_r($counter);