Find the number of columns in an array

Question

How do I count the number of types in this array output? Or better yet, how to exclude additional_data when calculating?

Array (
    [124] =>
        Array (
            [type] => 0
            [value] => 4 Pack
            [label] => 4 Pack
            )
    [125] =>
        Array (
            [type] => 0
            [value] => 6 Pack
            [label] => 6 Pack
        )
    [126] =>
        Array (
            [type] => 0
            [value] => 12 Pack
            [label] => 12 Pack
        )
    [additional_data] => {"swatch_input_type":"text","update_product_preview_image":"1","use_product_image_for_swatch":0} )

Tried count(array_column($swatchLists, 'type'));

But the output is 0

Answer 1

Please try the following code

$countResult = array();

foreach( $swatchLists as $item ){
    if( isset($item['type']) == false ){
        continue; // 排除不包含'type'的数组
    }
    $type = $item['type'];
    if( isset($countResult[$type]) ){
        $countResult[$type]++;
    }else{
        $countResult[$type] = 1;
    }
}
var_dump($countResult);

Each type of count will be stored in $countResult, where the array key is the type value and the array value is the count.