Question

php 获取二维数组里有多少个数组

Answer 1

可以php函数array_sum()，遍历的求和

$array = array(array(1,2),array(3,4));

$count = 0;
foreach($array as $key=>$value){

$count += array_sum($value);
}
echo $count;

Answer 2

count($array);