我有一个数组,看起来像这样:
Array
(
[A] => Array
(
[A] => Array
(
[01] => Array
(
[01] => Array
(
[0] => 01
[1] => 02
)
[02] => Array
(
[0] => 01
[1] => 02
[2] => 03
[3] => 04
[4] => 05
)
我正在查看最后一级数组,即:[A']['A']['01']['01']x和[A']['A']['00']['02']x
在这个级别上,在上面的例子中,01有2个项目,02有5个项目,03可以有4个项目,等等
我想知道,在不迭代所有项目的情况下,项目的最高数量是多少,即:在这个例子中,项目的最大数量是5(不是值05,而是数组的这个级别的项目数量)
尝试
$max = max(array_map(function($_){return count($_);},$Array['A']['A']['01']));
测试脚本
[akshay@localhost tmp]$ cat test.php
<?php
$Array = array("A"=>array("A"=>array(
"01"=>array(
"01"=>array('01','02'),
"02"=>array('01','02','03','04','05')
)
)));
// Input
print_r($Array);
$max = max(array_map(function($_){return count($_);},$Array['A']['A']['01']));
// Output
echo $max.PHP_EOL;
?>
输出
[akshay@localhost tmp]$ php test.php
Array
(
[A] => Array
(
[A] => Array
(
[01] => Array
(
[01] => Array
(
[0] => 01
[1] => 02
)
[02] => Array
(
[0] => 01
[1] => 02
[2] => 03
[3] => 04
[4] => 05
)
)
)
)
)
5