假设我有这个数组:
Array
(
[Europa] => Array
(
[country] => France
[capital] => Paris
),
(
[country] => Spain
[capital] => Madrid
)
[Asia] => Array
(
[country] => Russia
[capital] => Moscow
)
)
我如何计算包含在Asia
或Europa`中的项目数量?
谢谢。
假设
$myArray= [
'Europa' => [
'country' => France
'capital' => Paris
],
[
'country' => Spain
'capital' => Madrid
],
'Asia' => [
'country' => Russia
'capital' => Moscow
],
];
你可以使用基于索引的count()
$numEuropa = count($myArray['Europa']);
$numAsia = count($myArray['Asia']);