Php recursive array counting

Question

I'm trying to write a function which counts array elements recursively.

But result is false.

What could it be problem?

$schema = array(
    'div' => array(
        'class' => 'lines',
        'div' => array(
             'span' => array(
                'key' => 'Product Name'
            ),
            'val' => 'Soap'
        ),
        'layer' => array(
             'span' => array(
                'key' => 'Product Name'
            ),
            'val' => 'Ball'
            )
        )
);

function count_r($array, $i = 0){
    foreach($array as $k){
        if(is_array($k)){ $i += count_r($k, count($k)); }
        else{ $i++; }
    }
    return $i;
}

echo count_r($schema);

Answer 1

This is the second result on Google so I'm adding this as a reference. There is already a built-in function in PHP that you can use: count().

You can use it like this:

count($schema, COUNT_RECURSIVE);

This function can also detect recursion to avoid infinite loops so it's safer than solutions in other answers.

Answer 2

PHP has a built-in method for this purpose, called count(). If passed without any additional parameters, count() returns the number of array keys on the first level. But, if you pass a second parameter to the count method count( $schema, true ), then the result will be the total number of keys in the multi-dimensional array. The response marked as correct only iterates first and second level arrays, if you have a third child in that array, it will not return the correct answer.

This could be written as a recursive function, if you really want to write your own count() method, though.