如何在不使用PHP循环的情况下计算多维数组的元素数？

I have a an array like below:

我有一个像下面这样的数组:

$array = Array
        (
            '0' => Array
                (
                    'num1' => 123,
                    'num2' => 456,
                ),
            '1' => Array
                (
                    'num3' => 789,
                    'num4' => 147,
                ),
            '2' => Array
                (
                    'num5' => 258,
                    'num6' => 369,
                    'num7' => 987,
                ),
        );

I want to count number of elements i.e. from num1 to num7 means I want output 7. How can i do this without using loop?

我想计算元素的数量,即从num1到num7意味着我想要输出7.如何在不使用循环的情况下执行此操作?

2 个解决方案

#1

use array_sum and array_map function together.

一起使用array_sum和array_map函数。

try below solution:

尝试以下解决方案

$array = Array
(
    '0' => Array
    (
        'num1' => 123,
        'num2' => 456,
    ),
    '1' => Array
    (
        'num3' => 789,
        'num4' => 147,
    ),
    '2' => Array
    (
        'num5' => 258,
        'num6' => 369,
        'num7' => 987,
    ),
);

echo $total = array_sum(array_map("count", $array));

output

alternat way can be:

交替方式可以是:

echo count($array, COUNT_RECURSIVE) - count($array); //output: 7

#2

Using array_sum function

使用array_sum函数

$totalarray = array_sum(array_map("count", $array));

Using Foreach Loop

使用Foreach循环

$count = 0;
foreach( $array as $arrayVal){
    $count += count($arrayVal);
}

#1