@hpze2000 #14

sorry

function loop($data, $now = 0, $break = 0) {
foreach ($data as $key => $val) {
if (is_array($val) && ($break == 0 || $now <= $break)) {
for ($n = 0; $n < $now; $n++) {
echo '-';
}
echo $key . ': ' . count($val) . PHP_EOL;
loop($val, $now + 1, $break);
}
}
}
loop($b, 0, 2);

递归那里应该是$now + 1 而不是 $now++

打印结果：
2017-06-09: 2
-1: 6
--1: 6
--2: 6
--3: 6
--4: 6
--5: 6
--6: 6
-2: 6
--1: 6
--2: 6
--3: 6
--4: 6
--5: 6
--6: 6