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Home Backend Development PHP Tutorial php.ini中,max_input_nesting_level和max_input_vars两个限制如何理解?

php.ini中,max_input_nesting_level和max_input_vars两个限制如何理解?

Jun 06, 2016 pm 08:20 PM
php php.ini

我的网站只有一层变量,类似/index.php?a=a&b=b,不会出现/index.php?a[a]=aa&a[b]=ab的情况,个数也不超过2个。

但是经测试只有设置成下面的才不会报错:

<code>max_input_nesting_level=2</code>
Copy after login
Copy after login

首先这个我以为应该是=1,但是只有=2才不会出错;

<code>max_input_vars=36</code>
Copy after login
Copy after login

这个就更奇怪了,我没有那么多参数,为什么要36才不会出错。

以上使用下限我都是从0开始一个个试出来的。

另外,大家认为有必要为了防止用户错误输入路径,而把这个限制设得大一些吗?

回复内容:

我的网站只有一层变量,类似/index.php?a=a&b=b,不会出现/index.php?a[a]=aa&a[b]=ab的情况,个数也不超过2个。

但是经测试只有设置成下面的才不会报错:

<code>max_input_nesting_level=2</code>
Copy after login
Copy after login

首先这个我以为应该是=1,但是只有=2才不会出错;

<code>max_input_vars=36</code>
Copy after login
Copy after login

这个就更奇怪了,我没有那么多参数,为什么要36才不会出错。

以上使用下限我都是从0开始一个个试出来的。

另外,大家认为有必要为了防止用户错误输入路径,而把这个限制设得大一些吗?

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